Arectangle patio is surrounded on three sides by a fence. if the areas of the patio is 45 m sq and the total of fence is 19m what is the length and width of the patio?

Which is f(5) for the function –2x2 + 2x - 3?

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?

What ratio is proportional to 18/21