An airline charges $40 per bag that weighs less than 50 pounds and an additional $1.15 for each pound over 50. A customer was charged $45.75 for a single bag.
How much did the bag weigh?

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm