Answer:
45.8
Step-by-step explanation:
We need to find the surface area for this entire figure!
We can see that this is a pyramid here - we must find the area of the 3 triangles and the base triangle at the bottom.
The 3 triangles building up the pyramid are all equal to each other.
To find the area of a triangle, use 

Round to the nearest tenth: 45.75 -> 45.8
First you have to subtract 3x and then divide everything by -4 to get y=3/4x-7
0 cause there is no yellow paint there is only blue paint
Answer:
12
Step-by-step explanation:
1. Base x Height x Length
1 x 4 x 3= 12