I could use some help please

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

If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76