60
B.
you would need anything higher than an 87 because its an average and if you get lower there is no way it can get to a 87.
87/100 as a percent = 87%
87 percent or 87% = 0.87
0.0087 equals 87 percent percent.
If he wants a 90% average for the four tests, the least he can afford to get on thefourth one is 99%.(87 + 87 + 87 + 99) / 4 = 360/4 = 90%Good luck !
90 percent of 87 is 78.3
408.9 is 87 percent of 470.
87 percent of 325 is 282.75
1 percent of 87 is 0.87
32 percent of 87 is 27.84