math
posted by student on .
Sheryl correctly answered 85% of the questions on her 200question biology final.
Fernando scored a 90% on his 180question chemistry final.
(a) Who answered more questions correctly?
(b) Who answered more questions incorrectly?

(a) Which is greater: 85%of 200 or 20% of 180?
Do the numbers and compare.
(b) Subtract what you get in (a) from the number of q