The price of products may increase due to inflation and decrease due to depreciation. derek is studying the change in the price of two products, a and b, over time.

the price f(x), in dollars, of product a after x years is represented by the function below:

f(x) = 72(1.25)x

part a: is the price of product a increasing or decreasing and by what percentage per year? justify your answer. (5 points)

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

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)

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18