Rearrange the equation for like terms:
7b - 4b <span>- 3b </span>+ 3 + 5 + 2
= 10
1) 2m - 16 = 2m + 4
2m - 2m = 4 + 16
0 = 20 (no solution)
2) -4(r + 2) = 4(2 - 2r)
-(r + 2) = 2 - 2r
-r - 2 = 2 - 2r
-r + 2r = 2 + 2
r = 4
3) 12(5 + 2y) = 4y - (6 - 9y)
60 + 24y = 4y - 6 + 9y
60 + 24y = 13y - 6
24y - 13y = -6 - 60
11y = -66
y = -6
Answer: My guess is $4.55
Step-by-step explanation:
2.50 + 1.75 = 4.25 (This is the total of everything you bought)
4.25 x 0.07= 0.2975 (0.2975 is 7% of 4.25 but because this is money I will round it to <em>0.30</em>)
(0.30 is the tax so now add it to the original amount)
$4.25 + $0.30 = $4.55
