18 students are 100%-37,5%-40%=22,5%
So we know that 18 students equal to 22.5. And we are looking for the anwser what 100% of students is.
SO:
x students - 100%
(22 + 1/2)x =18×100
(22 + 1/2) can be represented as just 25.5
-//- = 1800
we need to divide bot sides by 25.5
x = 1800 / 25.5
... x = 80
So a circular pool will be in the shape of a cylinder. and the formula for finding the area of a cylinder is

. r=radius, h=height. If we put the numbers into the equation it is

.14 squared is 196 and 4*14= 56. So our equation is now

. 2*pi=6.28318530718 but let's round that to 6.283. So now our equation is much simpler 6.283(196)+6.283(56). Just multiply them. 1231.504+351.858= <span>
1583.362</span> is your final answer.
y=2x
Step-by-step explanation:
I dont know what else there is sry
Answer:
49646
Step-by-step explanation: