Consider the set of numbers (3.5, 7, 12, 2.1, 1, 13.8, 4.2, 15, 8.9, 4.2}. If a number is selected at random from this list, what is the probability that the chosen number is less than the arithmetic
mean of the numbers on the list?
0.6
0.3
0.5
0.4

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

$25 becasue a 10 increase would make it from 80 to 50