A group of k elements can be chosen from a group of n elements in

ways.

The answer is B. 495.
He will take 1/3 load of rock on the last load
Step-by-step explanation:
the 1st shop=196-(17.5/100×196)
=196-34.3
=161.7+196
=357.7
the 2nd shop=196-(22.5/100×196)
=196-44.1
=151.9+196
=347.9
so the difference between two shop is
357.7-347.9=9.8
You need the percentages to answer the question
Answer:
John Adams
Step-by-step explanation:
He was the 2nd President in the USA.