Http://www.pierce.ctc.edu/staff/dlippman/mathinsociety/Finance1.0.pdf I think this will help
For this case we have the following inequality:
2 ≥ 4 - v
The first thing we must do in this case is to clear the value of v.
We have then:
v ≥ 4 - 2
v ≥ 2
Therefore, the solution set is given by:
[2, inf)
Answer:
See attached image.
Second option, just do Pemdas backwards.
Multiply the numbers
4 + 3 . 7
Then 4 + 21
= 25
I believe it is B, but I'm still unsure !