A manufacturer wishes to calculate the average cost to produce 8,500 widgets. A) Cost of materials = $3,500
B) Cost of labour = $700
C) Quantity = 8,500
Which formula should she use to determine the average cost of each widget?
Average cost = A + B + C
Average cost = (A + B)/C
Average cost = (C+B)/A
Average cost = A/C+B

A. $1249.

Step-by-step explanation:

We have been given that Juno deposited $750 in a savings account that earns 4% interest compounded annually. We are asked to find the amount of money in the account after 13 years.

To solve our given problem, we will use compound interest formula. , where,

A = Amount after t years,

P = Principal amount,

r = Interest rate in decimal form,

n = Number of times interest is compounded per year,

t = Time in years.

Let us convert our given interest rate in decimal form.

Upon substituting our given values in compound interest formula we will get,

Therefore, there will be $1249 in Juno's account after 13 years and option A is the correct choice.