It takes zach 10 minutes to paint 40 1/2 square feet of his bedroom wall.
at this rate, how many square feet can zach paint in 1 hour?

243 feet

Step-by-step explanation:

Multiply 10 by 6 to make an hour and also multiply 40 1/2 or 40.5 by 6

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.