Given some amount to be received several years in the future, if the interest rate increases, the present value of the future amount willa. be higher.b. be lower.c. stay the same.d. cannot tell.e. be variable.

B. be lower

Explanation:

the present value of the future amount will be lower

a. y = 1246.667 + 7.6x

b $7.6 per unit

Explanation:

a..

Given

n = 6.

Solving the regression equation using

y = a + bx

See attachment for solution

a = 1246.667

b = 7.3

So, y = 1246.667 + 7.3x

b.

The Variable cost per unit is given by the slope of the regression equation i.e. the coefficient of x

Which is 7.6