
Always do what's in parentheses first:

Then do multiplication and division:

Then addition and subtraction last:
Here your base (1.5) is greater than zero, so you have exponential growth here. That " ^ " is the tip-off to exponentiation.
-12x-20-40plus 16x
-4x plus -60
The length is 7 and the width is 3
We need to know the schedules . . . How often does each shuttle run ?