4x^2=81 how do I figure this out

A video game arcade offers a yearly membership with reduced rates for gameplay. A single membership costs $60 per year. Game tokens can be purchased by members at the reduced rate of $1.00 per 10 tokens.

A 32 ounce bottle of fresh-squeezed fruit juice sells for $3.29. A 24-ounce bottle of the same juice sells for $1.97. Which bottle is the better deal?

A glacier is a giant mass of rocks and ice that flows downhill like a river. a certain glacier moves at a rate of 22 inches a day. Find the distance in feet the glacier moves in a year. (assume 365 days a year)

Write using algebra. A movie theater has n rows and m seats in each row. If each ticket costs $5.60, how much do all tickets to one movie cost?

What is the equation of a circle with center (-4,7) and radius 6

How can you create an equivalent equation by using the properties of equality

In substitution what is the answer to y=x^2-10x+14 y=7x-16

Solve the equation 1 (z + 2) = 5

Is 5n-m+2 an expression or equation

Write a mathematical expression for the phrase "5 times the sum of 3x and 4.