Step-by-step explanation:
Solve for b^2.
5-1 x 20=56/56 x 90/56 54/67=67
Answer
P=196
P=4A=4·2401=196
B. 2
1 is way too big, 4 is way too small, 3 is clearly less than a fourth of the pie chart, so it must be 2.