Set up an equation
x+58=4x+37
21=3x
x=7
Jim:
x+58
7+58
$65
Jesse:
4x+37
4(7)+37
28+37
$65
Correct.
PB is twice that of PA
So QC must be twice that of QA
The triangles are similar triangles.
Do 100÷8, then whatever the answer is multiply it by 8 and ta da
619, 000 because if you round to the nearest ten thousandth, it would go from 619,000 to 620,000.