Answer:
$672
Step-by-step explanation:
First find the area so:
5*4=20ft
2^2*3.14=12.56ft
20+12.56=32.56ft
Second find the price for the area:
32.56*12=$672
Hopefully it's correct!
Answer:
31
Step-by-step explanation:
First of,
or, in probability is subtraction and not means you shouldn't use green (therefore leaving you with yellow and red)
Red = 42
Yellow = 20
P(Yellow or Not Green) = 
⁘
= 
Hence, 31
N equals to 2 so 4 plus 2 is 6 and that is the answer!!
Glad I could help. Have A Good day
55,890
31% of 81,000 is 25,110
81,000 - 25,110 = 55,890