Which phrase describes a nonlinear function

The ticket at a concert are selling for $12.00. Juanita is going with a group of 25 people. There is a discount of 1/8 off each ticket for groups. How much will each ticket cost after the discount?

10d - 22 + 6d = 12d + 10

Zeki's course at a trade school cost $1,500. The school gave him a loan for the full amount at an interest rate of 23%. The school expects a payment of $123.00 every month for 15 months.

Write the standard form of y = - 5/6x + 1

There are 60 minutes in 1 hour. What fraction of an hour is 4 minutes? Write your answer in lowest terms.

What differnce between 7/8 and 1/4

Ms Gegory had $300 to purchase sports equipment for summer camp she bought 6 soccer balls. Each basketball cost $16.98, and each soccer ball cost 13.79 how mush money did she have left after these purchases?

2xy=4 (1/2xy) because

The campus shuttle arrives at the cafeteria every 8 minutes the library Shuttle arrives every four minutes if both shuttles arrived at their destination at the same time how many minutes would pass before they meet?

Of the birds in Monica's pet shop, 1/5 are pigeons. Of the pigeons, 1/3 are white. Look at each expression. Can it be used to find the fraction of birds in Monica's pet shop that are white pigeons?