D is the answer.
It is rational because it can be expressed as a ratio of 2 integers. All rational numbers are real. It is not an integer because it is not a whole number or the ngative of one. It is a fraction.
e=3.
So this is how I approached this. Since 7 is being multiplied, I divided both sides by 7 so 105/7 = 15. Then it becomes simple as 5e=15. We divide both sides by 5 and get e=3. Tip: just try isolating the variable and then life is much easier.
Answer:
2w
Step-by-step explanation:
that is 2 times w if you want a anwser i would need a definition of w