Answer:
1 sample
Step-by-step explanation:
There is only one sample given for 20%
Step-by-step explanation:
a)
8÷2=4
12÷3=4
27÷9=3
•it does'nt always take the same amount of time to serve each customer .
•10×3=30
b)
according to the question
2=18 point
4=36 point
8=72 point
18=9×2
36=9×4
72=9×8
so 1dollar =9point
•each dollar spent appears to earn the same number of point
•because 81=9×9, it costs 9 dollar
-1/8(x + 35)= -7
Use distributive property(Multiply -1/8 by x and 35)
-1/8x - 35/8= -7
Add 35/8 to both sides.
-1/8x= -21/8
Divide -1/8 on both sides so that the only thing remaining on the left side is the variable x.
Final Answer: 1/21
Thanks for the free points
