The answer is -52
First you must substitute the variables

Then you must simplify

Answer:
The original price is $90.
Step-by-step explanation:
100% - 40% = 60%

y × 60 = 54 × 100
60y = 5400
60y ÷ 60 = 5400 ÷ 60
y = 90
C.) 3:5 = 12:20
It is this because you can divide them evenly into each other. 3*4 is 12 and if you do 5*4 it is 20. Boo yeah
Answer:
y = x + 3y = x - 1
Step-by-step explanation:
Just graph them!
Hope I could help.
Answer:
66,100 in all.
Step-by-step explanation: