Answer:
13=x
Step-by-step explanation:
Side-spliting theorem
21/(x-4)=14/6
cross multiply
21*6=14*(x-4)
distribute 14
126=14x-56
add 56 to both sides
126+56=14x-56+56
leaving you with
182=14x
Divide both sides by 14 to get x by itself
182/14=14x/14
13=x
Answer:
a perfect square because 17 x 17 = 289
It's not a perfect cube
Step-by-step explanation:
105 x 0.08 and what you get is your answer
6; because they are an equal distance apart