Helll select all of the following sets of ordered pairs that are not function
A. (2,1), (9,4), (5,6), (2,7)
B. (3,1), (-3,1), (0,1), (5,1)
C. (1,1), (2,2), (3,3), (4,4)
D. (4,1), (6,7), (8,9), (4,7)
E. (2,4), 2,5), (2,6), 2,8)
hurrry pl

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Find the commission on a $590.00 sale if the commission is 15%.

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.