How do you simplify equations with variables involved?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

Find the 6th term of the expansion of (2p - 3q)11. a. -7,185,024p4q7 c. -7,185p4q7 b. -7,185,024p6q5 d. -7,185p6q5 select the best answer from the choices provided a b c d