How many minutes are spent warming up and cooling down if it takes three tenths and it is part of seven eighths hour class

First of all, find 7/8 of an hour. 60 / 1 times 7/8 = 420/8. 420/8 times 3/7 = 1260/56. That is 22.5, or 22 1/2 minutes.

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )