Jan needs $20 to buy her radio. She has saved $15. What percent of the cost of the radio has she saved?

How do i do this activity, is appreciated

The sum of two numbers is 12 and their difference is 18 what are the two numbers

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