Explain what a variable is in an addition or subtraction expression

She has 12 apples. She sold 10 and made a $1 profit. How much did she sell each of the 10 apples for?

At a local restaurant, a new dinner menu is available that offers 4 courses an appetizer, a salad, a main dish, and a dessert all for one price.

At a corner gas station, the revenue R varies directly with the number g of gallons of gasoline sold. If the revenue is $56.

What is the solution to y = x-3 * - 1

If the leftmost digits of two numbers are eight and three, which one is greater? explain

Suppose f (x) = x^2 and g (x) = (2x) ^2. Which statement best compares te graph of g (x) with the graph of f (x) ? A. The graph of g (x) is horizontally compressed by a factor of 2. B. The graph of g (x) is horizontally stretched by a factor of 2. C.

Solve for x: 5x-2x=7x+2x-24

Lydia buys 5 pounds of apples and 3 pounds of bananas for a total of $8.50. Ari buys 3 pounds of apples and 2 pounds of bananas for a total of $5.25. This system pound of apples, and y is the cost per pound of bananas.

What is the value of b if 9 + b = - 8

The drama club is washing cars for a fundraiser if the rate continues how many cars will they wash in 4 hours