What is the average rate of change of the function f (x) = 20 (1/4)^x from x=1 to x = 2? enter your answer as a decimal in the box do not round your answer.

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

Acylinder has volume 45π and radius 3. what is it’s height?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!