An online media service offers video and music downloads. each download of a song costs $1. each download of a video cost 3 times as much as the song download. you have a credit of $90. how many songs can you purchase after buying 15 videos?

answer: a.   one is a factor of every whole number since every number is divisible by itself.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1