I will give brainliest!

D

Step-by-step explanation:

Table a has a output set for every input, making it a function. However, table B has 2 different outputs for 1 input. Therefore, A is a function and B is not.

ranks (& how to earn them):

-beginner (needs at least 0 points & 0 brainliest answers)

- hand (needs at least 100 points & 0 brainliest answers)

-ambitious   (needs at least 250 points & 0 brainliest answers)

-virtuoso (needs at least 500 points & 5 brainliest answers)

-expert   (needs at least 1,000 points & 10 brainliest answers)

-ace (needs at least 3,000 points & 15 brainliest answers)

-genius   (needs at least 15,000 points & 50 brainliest answers)

how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.  

320ft

step-by-step explanation:

120 divided by 3 equals 40

40 times 4=160

160 times 2=320