Respuesta :
Answer:
To find out how many students took the exam you would add up how many students there was between each bar line.
First barline=5
Second barline=15
Third barline= 10
Fourth barline= 25
Fifth barline= 20
Last barline=15
When you add up all these numbers you get:
5+15+10+25+20+15=90
Therefore; you have 90 students who took the math exam.
The answer is D) 90 because if you add up all the kids in the bar graph it equal 90