Please help me solve the problem within the picture. All help is greatly appreciated​

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false