The numbers 1 through 70 are written with red marker on slips of paper while the numbers 71 through 120 are written with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly selected. a. Find the probability of selecting a number less than 10 or a number written in blue. Show your work. b. Find the probability of selecting a number written in red or a multiple of 20. Show your work.

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