Whats equivalent to 3x^2 + x-1

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

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.