Evaluate 2x + 6y when x = - 4/5x and y = 1/3

A printing company uses the formula C=0.5x+10 to find the cost of printing x business cards which equation correctly solves the formula for x?

The manager of a music store ordered 20 new violins. She ordered some of two different models: the standard and the deluxe. Each standard violin costs $500, and each deluxe violin costs $800.

Davids math grades are 85 49 67 and 83 on 4 tests. what grade must he earn on the next test to have a mean of 75

Given f (x) = 3 x minus 1 and g (x) = 2 x minus 3, for which value of x does g (x) = f (2) ?

A room measures 3ftby 7ft on a drawing of a home. If the scale is 1 ft = 3 yards then what would be the area of the room

How do I divide 2 fractions

There are 18 bicycles. There are more more blue than yellow. There are 2 less yellow than green. How many of each color are there?

Triangle STU is dilated to form new triangle VWX. If angle S is congruent to angle V, what other information will prove that the two triangles are similar?

What is the exact area of a circle with a radius of 11 feet?

How many batches of trail mix can Eric make with 16 cups of peanuts, 15 cups of raisins, and 8 cups of walnuts?