If y = 7x − 5, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?

{(−5, 0), (9, 2), (−26, −3)}
{(2, 7), (1, 6), (3, 13)}
{(0, −5), (2, 9), (−3, −26)}
{(1, 3), (6, 18), (8, 15)}

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation