15 runners registrated on first day and 21 on second what is the exponential growth equation y=a(1+r)2

What is the product of the radical expression. (7-2square root) (8+2 square root)

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Question 3 (essay worth 10 points) (03.06 mc) part a: max rented a motorbike at $465 for 5 days. if he rents the same motorbike for a week, he has to pay a total rent of $625. write an equation in the standard form to represent the total rent (y) that max has to pay for renting the motorbike for x days. (4 points) part b: write the equation obtained in part a using function notation. (2 points) part c: describe the steps to graph the equation obtained above on the coordinate axes. mention the labels on the axes and the intervals. (4 points)