Please help with math! I'm getting pretty confused about solving each system of equations by graphing. Any answers to this? y = x + 3 , y = 4x - 3

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?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

Quadrilateral ghij has coordinates g(5, 1), h(4, -3), i(6, -1), and j(2, 1). if the quadrilateral is reflected over the line y = x, what are the coordinates of h'?