What is the square root of 180x^9 y^16 in simplest form

Select a graph that have an equation with a < 0

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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.