3. 12 a
4. 7b-10
all you have to do is add up all of the sides.
1) 3 times 15 is 45
6) because in order for it to even have a slope it has to be constant through out the whole thing.
We start qt 72 degrees,
3 1/5 = 16/5 = 3.2 x 10 minutes = 32 degrees.
72 + 32 = 104 degrees.
Cool Time:
4 2/7 = 30/7 = 4.28571429 x 7 minutes = 30 degrees.
104 - 30 = 74
So we went from 72 to 74 degrees, that is a 2 degree difference.
This is what i got, i hope i understood the question correctly.v
The missing number would be 24
