Mr wallo picks up his son at school every day. The school is 4km away from his house.

Which expresions are equivalent to the one below? check all that apply. 5x

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

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?