Answer questions 5 and 7 and the problem next to 7 thank u, if there gets 2 answers if u ask I will give u the brainlest answer!

#5 (5^2+3^2) x (81+9) /10
(25+9) x 90/10
34x90/10
3060/10 = 306
7. 2 x 3 x 6 = 36 cubic feet
5 the 5 in 3.5 is 10 times the value as in 2.75 ( 0.05 x 10 = 0.5)
Please give me Brainliest answer