Answer:
the one one the top left is 85% shaded.
Step-by-step explanation:
what is 85% of 20?
what - x
is - =
of - times
x = 85% times 20
x=17
the one on the top left has 17/20 shaded so it is 85% shaded
2x-6
y-b+am/m
y-b=m(x-a)
y-b=MX-ma
mx=y-b+ma
x=y-b+ma/m
circumference =2×pi×r
18/2=9(r)
so...2×pi×9
=54..5
step by step
A=1/2h(B+b)
15=1/2h(4+1)
15/(4+1)=1/2h
15/5=1/2h
3=1/2h
h=2*3
h=6
