Answer:
isolate the variable by dividing each side by factors that don't contain the variable I believe the correct answer is 1. c=ab-da
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
12+8 = 20
20/5 = 4
Answer:
Step-by-step explanation:
All I know is x is 20 and y is $48.75 sorry.
I believe the correct answer would be C.
If a pentagon is regular, then all of the sides are the same length. This means that

So, if
, the lengths of the sides evaluate to

So, all the sides of the pentagon are 21 units long, and AB is 21 units long as well, because all sides are the same length.