Six dozen pens were placed on sale for $8.99 each. after the sale, 2 and 1/2 dozen were left.
-how many pens were on sale originally?
-how many dozens of pens were sold?
-how many pens were left at the end of the sale?
-what was the overall sales volume generated on the pens sold?

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t