The formula for area of a circle is:
A=(pi)r^2
If diameter is 5.5, divide by 2 to find radius is 2.75. 2.75^2 is 7.5625 then multiplied by 3.14 (pi) is 23.746.
Depending on how you round, about 23.7 square feet were painted.
The system of equations becomes:
s + u = 28 This represent the number of candles sold
16s + 10u = 400 This represents the value of the candles sold
A. 2.04
b .44
c.1.19
d .084
e. 19
f. 41.517
g.182.91
h. 96.16
i. .24
j. .0225
k. .0018
l. .00592
m.2.07
n. 2.175
o. .01359
p. 3.00552
q. 4.07
r. 71.064
s. 27.877
t. 35.7124
The value of A is 6 and B is 8
