What is (10^10)+(5*3)-72/100+(3.7*2) this is for fun

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?