Answer:

Step-by-step explanation:
The given functions are:

and

We want to to find

Note that:

We substitute the functions to obtain:

We now substitute x=7, to get:

This implies that


Answer:
6ft squared
Step-by-step explanation:
base x height divided by 2
3 x 4 = 12
12/2
6
Answer:
1. When adding you just add the numbers from the same space so
3 7
10 45
2. Same as adding but the opposite
2 1 2
3 1 6
1 2 1
Step-by-step explanation: