Acar race lasted 2.26 hours how many seconds did the race last? round to the nearest tenth of a second

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?