The owner of the west end kwick fill gas station wishes to determine the proportion of customers who pay at the pump using a credit card or debit card. he surveys 100 customers and finds that 80 paid at the pump. (round your answers to 2 decimal places.)

Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?