Answer:
mx+b
m=slope
b=y-intercept
Step-by-step explanation:
140.37 in²
C = 2πr
42 = 2πr
21 = πr
r = 21/π
A = πr²
A = π × (21/π)²
≈ 140.37 in²
0.6
3/5=0.6