Answer:
2.92
Step-by-step explanation:
Normal price
4 * 6.98 =27.92
Sale price
2 for 12.50 means 4 at 2* 12.50
2*12.50 = 25
Subtract
27.92-25=2.92
He saved 2.92
Answer:
a.
500x+0.04=y
400x+0.05=y
for percentages move decimal to the left twice
300 dollars would be the independent variable and 50 dollars a week is dependent