Answer:
92
Step-by-step explanation:
perimiter means all the way around, and im assuming this is a 4-sided shape, so 5+5+4+4 = 18 ft.
You multiply fractions simply by multiplying numerators and denominators with each other:

Answer:
It doesnt affect the equation
Step-by-step explanation:
If it were like this
8-(-9) means posotive minus negative 9