If meg cycles 6.2 km every morning how many feet are in 6.2 given that 1 mile = 1.609 and 1 mile =5,280

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.