It's an 11% increase. To find this, you have to subtract 85 from 94.35 and then you divide that difference by the original amount. In this case it's 85. After that, you get .11. Then you just turn it into a percent.
Answer:
1.False
the intervals used to create the histogram is 5.5
2.True
more than 10 hours were used by the students in playing the games
2x-2+x+5=90
3x+3=90
-3 -3
3x/3 =87/3
x=29