Me 20 pts rewrite the formula for area of a circle to find the radius of a circle. the area of a circle (a) is given by the formula a=pir^2 where r is the circle's radius. the formula to find r is . if a=54 centimeters and pi= 22/7 , r is centimeters.

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

What is the sum of these mixed numbers 4 2/3+ 3 1/9

If julia has a value of x5.4 that is equivalent to x10.9 true or false. explain