Answer:
y = -2/13
Step-by-step explanation:
-5 + 13y = -7
Add 5 to each side
-5+5 + 13y = -7+5
13y = -2
Divide by 13
13y/13 = -2/13
y = -2/13
1. 2 as 4 x 2 is 8 and 4 x 8 is 32 so 32 + 8 = 40
3-5w+12+2w-3
(3+12-3)=12
(-5w+2w)=-3w
-3w+12
1. 72 to 50 points
50/72 = 69%
100-69= 31% decrease
2. 14 to 40 books
14 / 40 = 35%
100-35= 65% increase
3. 10 plus 30% increase
10 * 0.3 = 13
