b
Step-by-step explanation:
volume = 4/3 x pi x r^3
4/3 x pi x 125
125 x 4/3 = aprox. 166.67
so 166.67 x pi = 523. 33
so 523.33!
32/80
91/140
the last one 54 doesn't go into 45. 54/100 ?
step-by-step explanation:
1/2*qr*rs