which of the following sets of ordered pairs is a function?
a. {(2, 1), (2, 2), (3,4), (5,6)}
b. {(-2,-1), (1, 2), (3, 4), (1,5)}
c. {(1,2), (2, 2), (3, 3), (2,4)}
d. {(1, 1), (2, 1), (3, 2), (4,4)}

Consider circle c with angle acb measuring 3/4 radians. if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.