What is the surface area of the cube? a. 729 mm2 b. 486 mm2 c. 324 mm2 d. 81 mm2

Can someone pls me i really need like asap

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached