At her part-time job, Alexis earns dollars per hour and works hours per week. Which of the following expresses the condition that her total earnings for a week are at least dollars?

Jason is 10 years older than Alexa. Using to represent Jason's age and to represent Alexa's age, which of the following demonstrates the correct relationship between Jason's and Alexa's ages?

For a school fundraiser, Leslie sold boxes of apples and pears. Each box of apples cost $12, and each box of pears cost $20. She didn't reach her goal of selling 100 total boxes, but she did break the school record for total sales revenue, exceeding the previous record of $1,600. If represents the number of boxes of apples she sold and represents the number of pears she sold, which of the following systems of equations expresses these conditions?

The above table shows the growth of two plants in cm. Which of the following statements best describes the growth of these two plants?

A supermarket features a guessing game in which customers try to guess the number of jelly beans in a jar, and those whose guess is within 5 jellybeans of the actual number win a prize. Which of the following expressions represents the guesses, , that would win a prize if the exact number of jellybeans is 232?

For a school fundraiser, Leslie sold boxes of apples and pears. Each box of apples cost $12, and each box of pears cost $20. She didn't reach her goal of selling 100 total boxes, but she did break the school record for total sales revenue, exceeding the previous record of $1,600. If represents the number of boxes of apples she sold and represents the number of pears she sold, which of the following systems of equations expresses these conditions?

Researchers have modeled the extent of ice loss in Greenland using the equation , where represents the surface area of Greenland covered by ice, in square kilometers, measured on September 30 of each year, represents the 12.8% rate at which ice is lost each year, and represents the number of years that have elapsed since the study began in 1979. What is the meaning of the number in this equation?

Upon discovering a tree virus in British Columbia, scientists created a model to predict the tree population in a certain forest: , where represents he number of trees after months since the virus's discovery, and represents the original number of trees that existed in the forest when the scientists made the discovery. Assuming that the model is correct, which of the following best describes the impact of the virus on the forest?

Hannah is selling candles for a school fundraiser all fall. She sets a goal of selling candles per month. The number of candles she has remaining for the month can be expressed at the end of each week by the equations , where is the number of candles and is the number of weeks she has sold candles this month. What is the meaning of the value in this equation?

Jason is 10 years older than Alexa. Using to represent Jason's age and to represent Alexa's age, which of the following demonstrates the correct relationship between Jason's and Alexa's ages?