It follows from the definition of the binomial coefficient:

So we have

That is,
gets absorbed into the numerator's factorial, and we introduct
into the denominator. Now,
, so we get

as required.
Answer:
3
x
−
7
Step-by-step explanation:
The probability that Mr. Hanson will pick a lemon is d. 3/4.
3 + 1 = 4. The 3 lemons make up 3/4 of the fruit, so he has a 3/4 chance, or 75% chance of picking a lemon.
Hope I could help! Let me know if there is anything else you need!
p.s. Brainliest? I am trying to get to higher ranks and it would really help :)