Answer:
7
Step-by-step explanation:
5p - 1 = 2p + 20
5p = 2p + 20 + 1
5p = 2p + 21
5p - 2p = 21
3p = 21
p = 7
Divide 140 by 5 = 28
The answer is 28
1)

2)

Here, the variable

can assume any value, and usually an inequality presented like this has

as a stand-in for all real numbers. If we really wanted to make that fact clear, we could write the two inequalities like this:

Formally, you'd read

as "

is an element of the set of real numbers," which is a fancy way of saying that

can be any real number.
A ÷ 2 = 4
Multiply both sides by 2.
a ÷ 2 × 2= 4 × 2
a = 4 × 2
a = 8
Your final answer is A. 8.