Answer:
C. 9
Step-by-step explanation:
81 = 9 x 9
18 = 9 x 2
so the greatest common factor (GCF) of 81 and 18 : 9
Answer is C. 9
Let x be the number of cars. We will find out how many cars you have to wash to make as much money as your friend:
10x - 25= 13x - 55 Add 25 on both sides and subtract 13x, also both sides:
3x = -30 Now divide both sides by -3:
x= 10 cars you have to wash.
Answer:
it is the reflection in the x-axis
Step-by-step explanation:
Answer:
x > 2
Step-by-step explanation:
5x +7 > 17
5x > 10
x > 2
