The area, A, of a circular ring with outer radius R and inner radius r is given by the formula A= pi(P2 – 2), Find the area of a circular ring with outer radius R = 10 cm
and inner radius r
= 5 cm, Give the answer rounded to the nearest one hundredth
square centimeter, cm^2.

Jack is considering a list of features and fees for denver bank. jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.