Okay so this is not too hard once you get the grasp of it. What you want to do is put everything with each other giving you the answer, -3x^2 +42x^2 -147x
Answer:
They form a proportion
Step-by-step explanation:
Take 66 songs and divide by 6 hours
66/6 = 11 songs per hour
Take 22 songs and divide by 2 hours
22/2 = 11 songs per hour
The rates are the same so they a proportional
10%= 80
5%=40
80 x 4= 320
320+40=360
the answer is 360
C because that with the that is that
