What percent of 6.6 is 28.71?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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.

What is the solution to the equation e3x=12? round your answer to the nearest hundredth