How many questions do I need to answer before being able to send messages on

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years