Percentages are ratios of an amount compared to 100. The percent change of an old to new value is equal to 100% x \({ new - old \over old }\).
Monica scored 86% on her final exam. If each question was worth 4 points and there were 400 possible points on the exam, how many questions did Monica answer correctly?
77 | |
86 | |
89 | |
93 |