The answer is A. .3 because do find the percent from a decimal you need to move the decimal point two to the right, so in this case it will be 30 or 30%
Answer:21
Step-by-step explanation:
Answer:
The area of the circle is 314mm²
Step-by-step explanation:
To solve this problem we have to use the formula for calculating the area of a circle
a = area
π = 3.14
r = radius
d = diameter
r = d/2
r = 20mm / 2
r = 10mm
a = π * r²
we replace the known values
a = 3.14 * (10mm)²
a = 3.14 * 100mm²
a = 314mm²
The area of the circle is 314mm²
50 x (1/5) = 10
50 - 10 = $40 sale price
W... the number of cups of water
12 : 4 = W : 8
4W = 96
W = 24