Superman is flying 54.5m/s when he sees a train about to fall into a river 850 m away. he must reach the train in 4.22 s. what acceleration does he need

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?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

△abc is similar to △xyz. also, side ab measures 6 cm, side bc measures 18 cm, and side xy measures 12 cm. what is the measure of side yz ? enter your answer in the box.