Ireally really need . thx for understanding

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

15/16 as a decimal rounded to the nearest hundredth

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.