Danielles hoop earring has a diameter of 4 centimeters. What is the radius?

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

Write the expression 7x^3-28xy^2 as the product of 3 factors

Calculate the average rate of change over the interval [1, 3] for the following function. f(x)=4(5)^x a. -260 b. 260 c. 240 d. -240