NEED HELP QUICK AREA AND PERIMETER WITH SQUARE BASED PYRAMID

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

Elm street is straight. willard's house is at point h between the school at point s and the mall at point m. if sh = 3 miles and hm = 4.5 miles, what is the value of sm in miles?

Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?