Answer:

Step-by-step explanation:
It's already in a form that only ha positive exponents. Just to state it though you could rewrite it as
or
The question asks for positive exponents though so yu don't need to do that.
You also need to know
so in this case 
so 
She took 100, the store has - 100
she went back and bough
70 bucks in stuff, the store has - 70
yes, she took the $100 bill and gave it, got back $30, that means she only kept $30 from the original bill.
the store however, lost the original $100 bill plus the $70 in merchandise, so they have -$170.
Surface area of the cylinder = 1850 square meters
Radius = 9 meters
Surface area of cylinder = 2*pi*r*h
1850=2*22/7*9*h
h = 1850*7/2*22*9
= 32.7 meters
Volume of cylinder = pi*r*r*h
= 22/7*9*9*32.7
= 8324.48 = 8324 (approx) cubic meters
Answer:
7
Step-by-step explanation:
5x3 =15
3-15=12
15-12=7
I see that 3 would be the diameter
But to find area we would need to have the
R*R*3.14
So 3/2 would be 1.5
Now we plug it in
1.5*1.5*3.14= 7.065
A= 7.06