Answer:
Mark wrote the highest score he made on his new video game as the product of 70 x 6000.
Associative property:
=>
= 420000
Commutative property:
=
3(a +3)
Step-by-step explanation:
(a+3)^2 -a(a+3)
FOIL
a^2 +3a+3a+9 -a(a+3)
Distribute
a^2 +3a +3a +9 -a^2 -3a
Combine like terms
3a +9
FACTOR out a+3
(a+3)( a+3 -a)
(a+3) (3)
3(a+3)
16
180-164=16 do the answer is 16