It takes one examiner 40 hours to mark 100 exam papers.
how long should it take 4 examiners to mark 100 exam papers?

10 hours

Step-by-step explanation: each examiner can grade 25 papers for 10 hours at the same time (40 hours/4 examiners = 10 hours)

what golf ball

step-by-step explanation:

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.