A 3,050 foot long road travels directly up a 550 foot tall hill. What is the angle of elevation (0) from the bottom of the hill to the top of the hill to nearest hundredths?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

Math i have no idea how to do a and b