10. Jack needs new brakes for his car. He cannot afford to spend more than $500 to fix his car. If the parts cost $165, and the mechanic charges $55 per hour, what is the maximum number of hours the mechanic can
work on his car?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

State one method by which you can recognize a perfect square trinomial.

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?