The rules are


Let me show you why with a couple of examples: suppose we want to multiply

Since powers are just repeated multiplications, we have

Similarly, we have

Answer:
8 in^2.
Step-by-step explanation:
F = P * A
22 = 2.75 * A
A = 22/ 2.75
A = 8 in^2.
Answer:
5
Step-by-step explanation:
The number of elements in set A is 5.
Answer:
15 + .5x = 25
Step-by-step explanation:
.5x = 10
x = 20
Answer:
None of the above
Step-by-step explanation:
=4+2y+7
x+8=(7x)+
(2y)+(4+8)=7x+2y+12