Answer:
Hello,
Answer C: -40
Step-by-step explanation:

Answer:
240
Step-by-step explanation:
40+30+20=90
360/90 is 4.
So hip hop and rock combined are voted by 60 students.
60 x 4 is 240 students out of a potential 360.
Answer:
8
Step-by-step explanation:
Isolate and solve for C

Once you have the points they make a 3-4-5 triangle. The two legs are 3 and 4, so the hypotenuse has to be 5. Or you could use the pythagorean theorem a² + b² = c² 3² + 4² = c² 25 = c² c = 5
then find area
A=1/2bh
1/2(3*4)
6