Answer:
24
Step-by-step explanation:
Lets start by working out 80% of 30
80% x 30=24
so the student answered 24 questions correctly
Answer:
482.7972
Step-by-step explanation:
Well the formula for the perimeter of a rectangle is 2w+2l
w=width
l=length
So it is 2(665)+2(421)=2172
rad 128 can be broke into 64*2
square root of 64 is 8, times -5,
which leaves -40rad2