8y-3=6y+17
2y=20
y=10
The answer for y is 10.
The answer is 300 divided by 20 which you would get 15.
I am sprry bit I am not sure if I got it right but 560 centimeters if you group the sum of each side and multiply it like 2(2+12)*2(4+6), maybe I switched the multiplications around
it dropped from 0 to -20
-20 -0 = -20
divide by the time of 5 hours
-20/5
-4 degrees per hour
