PLS I NEED HELP QUICKLY

Agroup of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of the total cost appetizers are $5 and main dishes are $10 write an expression to show how much each person pays explain it with how to solve the problem

Asap 25 pts + brainliest to right/best answer

Rodell wants to find the favorite gaming app among the students at his school. he decides to poll the thirty students on his football team and the fifteen students on his basketball team to gather the data. what is wrong with rodell’s method for collecting his data? a. rodell only polled male athletes; this sample does not represent the girls or nonathletes at the school. b. rodell needs a larger sample size than two sports teams to represent a whole school. c. rodell polled everyone on his teams; he should have only polled every other student for it to be a true sample. d. rodell’s polling method only included fall and winter sports; he should have also included a spring sport like baseball.