77 / 90 = 0.85556
77%. When dividing to get percents, just divide by 100 then move the decimal place two places to the right to get the percent.
90% of 90 = 90*90/100 = 81
90% of 90 million= 90% * 90= 0.9 * 90= 81 million
It is: 90%
90 - 90 = 0
1000
4*90 = 360
90
90+90=180
90 * 90 = 8,100
The square root of 8100 is 90 (90 x 90 = 8100)
Simple, divide 900 by 10!