Which relation is a function? : )
a. {( 1 , 2) , ( 2 , 3 ) , ( 3 , 4 ) , ( 4 , 5 )}
b. {( 1 , 2 ) , ( 1 , 3 ) , ( 1 , 4 ) , ( 1 , 5 )}
c. {( 1 , 2 ) , ( 2 , 3 ) , ( 3 , 4 ) , ( 2 , 5)}
d. {( 1 , 2 ) , ( 3 , 2 ) , ( 3 , 3 ) , ( 4 , 2 )}

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

john got lost so he didn't know what to do and it was crazy because he didn't except it

step-by-step explanation:

123123 step byt step

80% of the cookies

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.