Answer:
4 x (7-x)
Step-by-step explanation:
4 times (multiply) the difference (subtraction) of 7 and a number (seeing as how you don't know that number use a variable, x)
If the bike cost $80 and got it with a discount to $60 the answer is 20%
Answer:
30 pounds
Step-by-step explanation:
300/2 = 150
20% of 150 is 30.
Answer: 26.9%
Step-by-step explanation:
9.9-7.8=2.1
(2.1/ 7.8) •100=26.9