Answer:
x=125
Step-by-step explanation:
suppose the number is x
72% of x is 90
=> 0.72x=90
=> x=90/0.72
=> x=125
80%
The answer is -17/5
hope that helps
Answer: an=8+(n-1)(-6) .
The answer would be 4/9
he gets 4.33 dollars back
add 2.75+1.20+1.35+0.37= 5.67
10-5.67=4.33 $
