| x - 2 | + 4 < 7
-7< x - 2 + 4 < 7
-7 < x + 2 < 7
-9 < x < 5
Answer:
There are 76 students:
g + b = 76
girls is 13 more than twice the boys:
g = 2b + 13
replace g with 2b + 13 in 1st equation
2b+13+b = 76
3b + 13 = 76
3b = 63
b = 21 boys
g = 76-21 = 55 girls
Step-by-step explanation:
(1+0.30)=1.30
56 (1.3) = 72.80
The price of the pair jeans before the sale was $72.80