Rain fell on four days in june. these amounts were recorded: 5 mm, 9 mm, 2 cm, and 2.6 cm. what was the total rainfall for june?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Can someone me with my math problem pls my teacher is on my back about this