Does the set of ordered pairs {(3, 11), (6, 1), (6,4), (15,4), (18, 18)} define a function? A
Yes, because each input has only one output.
B
No, because two different x-values are paired with 4.
C
No, because 6 is paired with two different y-values.
D
No, because 18 is paired with itself

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: