Hi! what's The GCF of 10a-25+5b ? thank you! <3

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.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Write an equation for the function that includes the points (2,100)and (3,100)