Help needed Oliver is using plywood to build the skateboard ramp shown. Three sides of the ramp are rectangles.

How many square feet of plywood does Oliver need to build the ramp?

help atleast tell me how to solve it or just give me the answer !

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Renee hiked for 6 3 /4 miles. after resting, renee hiked back along the same route for 5 1 /4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.