Answer:
If sam had x accounts, then ruby had 9x then:
X + 9X = 120
10X = 120
X = 120/10
X = 12
If ruby had 9x then she had:
9(12) = 108
And Sam:
12
108 - 12 = 96
Ruby had 96 more accounts than Sam
Step-by-step explanation:
How i did it:
<span>25% is equal to 1/4 right? 20 in 4 equal parts (or 20 divided by 4) is 5. 20-5 =15 dollars!</span>
Answer: OPTION B
Step-by-step explanation:
You need to remember the logarithms properties:

Then, you can rewrite the expression as a single logarithm:

This matches with the option B.
each letter can be 1 of 26 letters
each number can be 1 of 10 digits
so you get
26 * 26 *26 * 10 *10 = 1,757,600 combinations