Ataxi service charges a pick-up fee of $4 plus charge of $1.75 per mile driven. write an equation for this function, and identify the slope and the y-intercept

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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?