Chicken costs $3.20 per pound, and beef costs $4.59 per pound. What is the exact cost of 3 pound of beef?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Standard deviation of 19,29,21,22,23