He gave away 9 (20 x (3/7) =9) so 21-9=12
Answer:
Step-by-step explanation:
explain how to do this more
Answer:
a. Sale Price
b. Total percent discount
Step-by-step explanation:
First Discount:
Initial Price
Discount
Second Discount:
Effective Discount:
Initial Price
Final Price
Total discount
Answer:
x=−2,−8
Step-by-step explanation:
Move terms to the left side. Then set each factor equal to zero.
x=−2,−8
the answer is 4.8. Your welcome