Kendra was asked to find the number of students who planned to attend the evening symphony performance. She was told that 40 percent of the 50 students planned to attend. Kendra’s work is shown below. Kendra should have multiplied by 4 instead of multiplying by 2.
Kendra should have divided by 2 instead of multiplying by 2.
Kendra should have added 40 and 50.
Kendra should have subtracted 40 from 50.
What mistake did she make