Janelle is at the movie theater and has $20 to spend. she spends $8 on a ticket and wants to buy some snacks. each snack costs $4.99. how many snacks, x, can janelle buy? (picture provided)

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

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