7.8=rational because rational numbers are numbers that can be in a fraction decimal whole etc.
Answer:
x=1
Step-by-step explanation:
1/5(10x-20)=x-3
2x-4=x-3
2x-x=4-3
x=1
The percent change is 40%
Step-by-step explanation:
The percent change is given by the formula

Here
New value = 70
Original value = 50
Putting the values in the formula

The percent change is 40%
Keywords: Percentage
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The correct answer has to be A 42
Answer:
u= -2,352
Step-by-step explanation: