Please help 1-8 using surface area find the missing dimension 9-16 using volume find the missing dimension please show your work I am confused

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2