Answer:
68%
Step-by-step explanation:
Divide the amount she spent this year, by the amount she spent last year, in this case, 393 divided by 572 =0.68706293706, but we need to make it into hundredths, so it is 0.68, or 68%.
Pretty sure you just add 80% and 20% to get 100%, hope this helps....
10.5 - 8.7 = 1.8
There is 1.8 feet of pipe left
100 + 55m > 150 + 51m <=== ur inequality
55m - 51m > 150 - 100
4m > 50
m > 50/4
m > 12 1/2 (or 12.5) months <=== would have to keep the second cell phone for at least 13 months....because I rounded 12.5 up because I am not sure half a month counts