The cost to rent a paddleboat at the city park includes an initial fee of $7.00, plus $3.50 per hour. which equation models the relationship between the total cost, y, and the number of hours, x, that the paddleboat is rented?

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

What is the missing step in this proof ?