3-NOS 13. Roberto and Mia are traveling in the United States. They are buying postage for postcards
to send to their friends in Canada and Mexico. Mia spends $6.10 on postage to send 8
postcards to Mexico and 3 postcards to Canada. Roberto spends $10.90 to send 5 postcards to
Mexico and 12 postcards to Canada. What is the postage rate for the postcards sent to
Mexico?

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Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.