Which of the following is mostly likely the next step in the series ?

c

Step-by-step explanation:

Step 1: calculate the number

everytime the number goes up by 5 so we can assume that it will be 25

step 2: find the letter

it just goes by the alphabet so we can assume it will be e.

the letter always follows the number and it alternates between uppercase and lower case and last time it was uppercase so it will be lowercase.

Therefore it will be 25e

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)