Answer:
y = -1/2x + 4
Step-by-step explanation:
Answer:
The difference is that the height of the cone is divided by 3
Step-by-step explanation:
formular of cylinder

Formular of a cone

I would recommend calculatorsoup.com for the fractions part.
Answer:
They changed 5m into a positive when it should've stayed as a negative until you isolate the variable m at the end, making m actually equal -7.
Step-by-step explanation:
-5m - 16 = 19
-5m = 19 + 16
-5m = 35
m = 35/-5
m = -7