Answer:

Step-by-step explanation:
Given

Required
Determine the equivalent expression

Simplify the first fraction

Apply law of indices on the first fraction;



Apply law of indices:

Evaluate the bracket

Collect Like Terms




Hence:

X=60° (equilateral triangle)
y=120°
Working: (360°-120°)/2
Answer: y=18x
Step-by-step explanation:
18$ each. You start off with no profit so.


Answer: 4y
Remark:

by the difference of squares identity, or formula.