Philip runs at an average speed of 4 m/s. How long will it take Philip to complete a 10 kilometre race? Give your answer in minutes and seconds.

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?

9is the geometric mean between x and 12

Avideo game enthusiast saved $750 to spend on a video game player and games. the player costs $400. the games costs $49 each. at most how many games can this enthusiast buy along the player