The expression would be

after the negative exponents have been removed.
A negative exponent basically tells us to "flip" the side of the fraction it's on. This means that y⁻⁶ on the numerator would go to the denominator, and that x⁻⁴ on the denominator would go to the numerator. This gives us:
Lionel had 250 pages copied
This is because 20/.08=250.
Answer:
B. Complementary Angles
Step-by-step explanation:
They both make up 90 degree angle.
3+8x-2y-x+1+4y
Combine all like terms and
7x+4+2y is your answer