Abcd is a trapezium in which ab parallel dc ,dc=30cm and ab=50cm .if x and y are respectively the mid point of ad and bc then prove that area(dcyx)=7/9 area(xyba)

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

Solve: 3x+y=6 4x-2y=18 show all work !

Multiply. write your answer in simplest form. 3/8 x 5/7