2/3x = -12 how do you solve this

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

Asap easy 6th grade 30 pts describe how to rewrite a power with a positive exponent so that the exponent is in the denominator.

Ineed this soon its an easy question about triangles tyty