O PROBABILITY Introduction to permutations and combinations
Suppose we want to choose 2 letters, without replacement, from the 5 letters A, B, C, D, and E.
(a)
How many ways can this be done, if the order of the choices is taken into
consideration?
(
(b)
How many ways can this be done, if the order of the choices is not taken into
consideration?

Asmall foreign car gete 42 miles per gallon and user 35 gallons on a trip.gasoline costs $1.05 per gallon.what was the cost of gasoline per mile driver?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Which of the following can be used to explain a statement in a geometric proof?