Okay hold on. I’m trying to figure this question out. I will help you!
The answer to this question is 120 cm . you multiply 10 times 12 and u get 120.
It's linear
If you evaluate x when it's 0 you'll get the cut in y, that means the function will pass on (0,7)
The formula for linear functions is y=mx +b
In this case b is 7
M=7-5/0+1
M=2
Now you just write the function down, it would be
F(x) =2x + 7
