The correct answer is definitely C.
Answer:
21
Step-by-step explanation:
The expression Jackie came up with is:
0.75m = 15.75.
To get the value of m, we divide both sides by 0.75
0.75m = 15.75.
0.75m/0.75 = 15.75/0.75
m = 1575/75
= 21
If the blue part is what is shaded, I'd say it's Graph B. But you can double check on a great website called "https://www.desmos.com/"