Not much time !

which of the relations given by the following sets of ordered pairs is not a function?

select one:
a. {(52)}

b. {(−4,−−1,−,,,10)}

c. {(−8,−−6,−−4,−−2,−−1,−4)}

d. {(−6,−3,−,,−,3)}

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5