Answer: 
Step-by-step explanation:
By definition, negative numbers, positive numbers and zero are Integers.
It is important to remember the multiplication of signs:

You can observe that you must multiply two integers, one of them is negative and the other one is positive. The product will be an integer. Then:

Since any Integer can be written as a fraction, you can rewrite the product by writing
as the numerator and
as the denominator.
Then, this is:

We need to see the the picture of the problem to be able to help you! :)
43680 for the trapezoid
35 times 48 times 26
1521 for the triangular
39 times 39
Answer:
7 is a prime, so you're finished.
You write the result as
756
=
2
2
⋅
3
3
⋅
7