Michael has a toy car collection. He keeps 78 of the toy cars on his wall, which is 39% of his entire collection. What is the total number of toy cars in Michael's collection?

What are potential hypotheses (explanations) regarding why there are ecological equivalents between many metatherians and eutherians? discuss your hypothesis in terms of the processes that could lead to the current ecologies and distributions of metatherians and eutherians.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students