Me with the process to find the answer for #3, #4, #5,#6 and #7

you it’s very much appreciated! : )

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

How do you write 600 as a product of its prime factors (index! )