Which expression is equivalent to 10x^6y^12/-5x^-2y^-6?

a) -50x^8y^18
b)-2x^8y^18
c) -2x^12y^72
d)5x^8y^18

What is the value of x? enter your answer in the box. (cm)

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price