Mark purchased a new stereo that sells for
$1250
including tax and delivery. he paid

$⁢650
down and the remaining cost in five equal monthly payments. what were his monthly payments?

120 a month (1250-650 = 600, 600 divided by 5 = 120)

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 : )