Samantha wants ro draw such a circle that the measure of its area is equal to the measure of its circumference. what would be the diameter of this circle

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.

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?