Answer: 0.1 or 1/10
Step-by-step explanation:






Cross, cancel common factor


4t=r
a=pir^2
sub 4t for r
a=pi(4t)^2
a=pi16t^2
a(t)=16pi(t^2)
A. a(t)=16pi(t^2)
B. sub 4 for t
a(4)=16pi4^2
a(4)=16pi16
a(4)=16*16*3.14
a(4)=803.84 square units
A. a(t)=16pi(t^2)
B. 803.84 square units
Answer:
23/16
Step-by-step explanation:
3*8/2*8=24/16-1/16=23/16
16.79+28.49=45.28
50-45.28=4.72
Kelly would get $4.75 back
125 cubes since the little cubes are all 1 volume you can just say the normal volume.