What is the surface area of the figure 291 ft 399 ft 582 ft 900 ft

Really need on these. i have no idea what to do

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.