Jason remembers nine digits of a ten digit phone number. he remembers that the last digit is an even number. if he guesses that last digit, what is the probability that he dials the correct number?

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

What is the greater volume 72 quarts or 23 gallons

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2