A Rocket is launched from the top of an 30 foot cliff with an initial velocity of 160 feet per second. The height, h of the rocket after t seconds is given by the equation h=16t2+160t+30.how long after the rocket is launched will it be 20 feet from the ground

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Twelve less than a number is at most 20

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.