Multiplying 0.7 by the original price will work...
If you divide the cost by 100, subtract 30 from 100, you will be left with 70% times the 1/100
70% is also expressed as 0.7, since 7/10=70/100
Hope this helps!
Answer:
b
Step-by-step explanation:
edmentum
The answer would be 17 because 59 - 30 = 29 and 29 - 12 =17
The answers for 13 and 14 are attached in the file.