Is x greater or less than 9? why or why not?

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?

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?

Given the net of the rectangular prism, what is its surface area?