Expression to represent the perimeter of a rectangle that has a length of 5x+85x+8 and a width of 10x+3

What is the product of the radical expression. (7-2square root) (8+2 square root)

Multiply. write your answer in simplest form. 3/8 x 5/7

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.