Lamar buys $75 worth of clothes. He pays $81, including sales tax. What is the tax rate?

A jewelry supplier has a supply of earrings which are 30% platinum. A store owner orders five sets of earrings from the supplier.

A jug of cider contains 3 l. how many 250 ml servings are in one jug?

What is the y-intercept of the function f (x) = 4 - 5x?

The perimeter of a square is directly proportional to the length of its sides. A. Write an equation to represent this direct variation. Make sure to define your variables. B.

A rectangle has length 72 cm and it's width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm. Find the constant of variation.

What is 20/50 in decimal form?

A rectangle has a height of 5 and a width of 4x^2-2x-6. Express the area of the entire rectangle.

Simplify the expression 5/4 - (7/4+2i) and write the result in the form a+bi

A park is shaped like a rectangle with a length 5 times its width (w). What is a simplified expression for the distance between opposite corners of the park?

True or False If a given input value yields four output values, that relationship can be best described as a function.