Answer:
153.86.
Step-by-step explanation:
Formula for area of a circle: A= Pi R (R is radius) squared. First fill in the numbers: 3.14x7^2 Then Solve for the squared: 7^2=49, then finally multiply 49x3.14 which gets you to 153.86.
2.5
you can use pythag theorem and divide c by two:
-3^2+4^2=c^2
9+16= 25
c=5
however, 5/2=2.5
12 ounce bottle
12 x 3 = 36
16 x 5 = 80
So, that means the 12 ounce bottle is cheaper. :)
Answer: 70
I think
11.64
8.24+3.4=11.64
