# Pre-Algebra [repost]

posted by
**mysterychicken**
.

I'm sorry I had to repost, but this is urgent and i need it done by today!!

Can someone please show me how to do these problems? I've been trying but I'm having a hard time...

1.Simplify the expressions on each side of the equation to obtain an equivalent equation:

5x + 12 + 4x -16= 100/2

2.Angles UVW and angles XYZ are complementary angles. m of angle UVW is 18 degress less than m of angle XYZ. What is m of angle UVW?

3.After a 24% increase, the price of a tennis racquet was $37.82. What was it's original price?

Thanks so much!!

-MC