Solve the following system of equations: 3x − 2y = 66x − 4y = 12

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false