F(x)=3(0.75)x exponential growth or exponential decay​

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?