15.78=5.28+6x
I just need help with this math problem

Miguel bought a movie ticket that cost $5. he also bought popcorn and a bottle of water. how much did miguel spend altogether?

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x