Answer:
Below.
Step-by-step explanation:
3 to the 4th is 3x3x3x3 or 81. 5x5=25
81+25=106.
Write the equations,
10 c + 5 f = 6900
5c + 3f = 3660
Double,
10c + 6f = 7320
Subtract,
f = 7320 - 6900 = 420
10 c = 6900 - 5f = 6900 - 2100 = 4800
c = 480
Answer: Cheeseburger 480 calories, fries 420 calories
Check:
10 (480) + 5 (420) = 4800 + 2100 = 6900 good
5(480) + 3(420) = 2400 + 1260 = 3660 good
64/40 = $1.60
$1.60 * 10 = $16
He should charge $1.60 a pack, another way to say this is $16 for the 10 packs total
$2320 - $100 =$2220 .
$2220 - $200 =$2020 (that was emeralds)
$2020 - $300 = $1720 (diamonds )
$1720 - $200 - $200 = 1320
$1320 - 300 = 1020
11 17 23 29 and 35 sorry I couldn't use commas