System Applications 1. The pet store is having a sale on pet beds and toys. One customer buys 1 pet bed and 3 pet toys for a total purchase of $55.00. Another customer buys 3 pet beds and 5 pet toys for a total purchase of $125.00.
2. Two trains are traveling in the same direction. The first train is traveling at 110 miles per hour. The second train is traveling at 150 miles per hour but left the station after the first train had gone 300 miles.
3. Janie's new job has a different payment schedule than her last. Her last job paid $8.50 for every hour worked. Her new job pays her $3.00 for every hour worked plus a set amount of $150 each week.
Define each variable in each problem please! <3

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Describe how making an ‘and’ compound sentence effects your solution set

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?