Answer:
he must work 8 hours
Step-by-step explanation:
soln:
given,
$8=1 hour
or,$1=1/8 hour
so,
$64=64*1/8 hour
•°•$64=8 hours
It is called a constant.
Remember a "variable" means that the value of that term can change depending on the value of the "x" or "y". Since (in this case), -6 does not have a variable attached, it will not change, it will remain CONSTANT.
Perpendicular slopes are oposite inverse, ie. the slopes of perpendicular lines multiply to get -1
8 times -1/8=-8/8=-1
the slope is -1/8
Answer is the last expression 3^-3 / 3^4