The ratio of north american butterflies to south american butterflies at a butterfly park is 7: 4. the ratio of south american butterflies to european butterflies is 4: 3. there are 84 north american butterflies at the butterfly park.

how many south american butterflies are there?

there are (blank)
south american butterflies.

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.

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,