Assuming that you mean 5x(2-3) for your equation, you would just have to plug 2 into where x is. This makes your equation 5*2(2-3). This gives you 10(-1) because 5*2=10, and 2-3=-1. Then simply multiply the two to get:
-10
Hope this helped!
Answer:

Step-by-step explanation:
A three dimensional configuration with its face shaped of rectangle is called a Cuboid. So, the prism is in the shape of a cuboid.
The volume of a cuboid = Length *Breadth*Height

The volume of the cuboid shaped prism is 
Step-by-step explanation:
[70,30] = 210 miles per hour
7+n/4=9
Or
N/4+7=9
Or
9=n/4+7