There were 350 hamburgers sold on Saturday. Hope this helps!
The answer is:

But if x2 was supposed to be x^2 then the answer is:
The easiest way, I think, is to convert the mixed number into an improper fraction, then multiply by 3.
3 1/2 = 7/2
7/2 · 3 = 21/2
now just change the improper fraction back to a mixed number by dividing and putting the remainder into fraction form
21/2 = 10 1/2
You could also multiply the whole number by 3 and the fraction by 3, ending up with 9 3/2, but then have to convert the improper fraction into a mixed number
3/2 = 1 1/2
then add the numbers together
9 + 1 1/2 = 10 1/2
either way works, whatever is easiest for you.
A= P(1+r/n)^nt
P<span> =</span> principal amount (the initial amount you borrow or deposit)
r = annual rate of interest (as a decimal)
t<span> = </span>number of years the amount is deposited or borrowed for.
A<span> =</span><span> amount of money accumulated after n years, including interest.</span>
n = number of times the interest is compounded per year
A= 1100(1+0.343/12)^12/4
A = 1197.04
Amount saved = 1197.04 - 1100 = $ 97.04
The expression that represents the total volume of both cubes is

.
The volume of a cube is found by multiplying its length, width, and height; for the first cube, this is
V=(2f)(2f)(2f)=8f³.
For the second cube, this is
V=(3g²)(3g²)(3g²)=27g⁶.
The total area is their sum, so 8f³+27g⁶.