You put $10,000 in a simple interest account at a bank. you will earn $1,800 in just 4 years. what is the annual interest rate for the account?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then, the two had the same amount of money. how much money did each have originally?