PLZ HELP!! The function c(x) = 2.5x + 15 shows the cost, in dollars, to make x necklaces.

What is c(10)?

What is c(15)?

What is the best interpretation of c(20) = 65 in terms of the problem?

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

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)

Find the missing dimension! need asap! tiny square is a =3025 in ²