Answer:
$10
Step-by-step explanation:
Answer:
-3mn
Step-by-step explanation:
It seems you might be missing some of the question, as you haven't given what m and n are equal to.
If the question has just given you x, then you would simply just simplify it to get -3mn.
8-3(2)
8-5
=3
the answer should be 3 after plugging in the variables.
You could round 77 to 80 and 65 to 70 and then add 70 and 80 and you will get 150
The formula for volume of a prism is v=(1/2bh)h so it would be
(1/2 ×7.8×4)×9= 140.4
