Collins middle school has 312 six grade students at this is great student is 40% of the total school how many students are in the middle school

780 students

Step-by-step explanation:

Take 40% as 0.4

Then do 312÷0.4= 780 students

780

Step-by-step explanation:

Let x be total of the students in the school.

Then ,this X is equivalent to 100%

So, 40=312 what about 100

This gives you 780

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 : )