Answer:
3: Variable Equation = If h is hours then 8h - 75
The answer is 8 hours.
My work is 42x8-75
4: Variable Equation = Let x be the amount spent on jeans, then
1) 45 + 10 + x = 90
x = 90 - 55 = 35
:
2) let n be the number of jeans he will purchase, then
35n < or = x
Note that x = 35, therefore
35n < or = 35
n < or = 1
:
Billy has enough money left over from buying the jacket and hat to purchase 1 pair of jeans.
Good Luck!