Answer:
Assuming they bought the same shoes, $82.5
Step-by-step explanation:
80% of Original Shoe price = $82
Divide by 0.8 to find the original price.
82 / 0.8 = 102.5
102.5-20=82.5
Answer:
D. The graph of function
is the graph of function
shifted 4 units to the left.
Step-by-step explanation:
the function
is composite function between
and
, then you can re-write
as:

The transformation happened in the input, then you have an horizontal shifted and how it's adding 4 units then you go "faster" and move to left the graph.
In the image you can see what's mean sum a constant in the
of a function.
Answer:
yes
Step-by-step explanation:
anything with 10^n multiplied by a number from 0 to 10 is