Define a variable for each unknown. Write a system of equations to represent the situation. How many half-page advertisements does Gavin purchase? Show your work.

How many full-page advertisements does Gavin purchase? Show your work.

Which of the following could be the graph of the equation y = -2x + 5

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000