On a farm, 3 1/4 out of every 13 acres of the land are used to grow crops. wheat is grown on 4/5 of the land used to grow crops. what percentage of the total area of the land on the farm is used to grow wheat?

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.

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

We just started the introduction into circles and i have no idea how to do this.