To move his game piece, Nathan needs to roll two even numbers. Are there more or fewer favorable outcomes for Natan than Charlotte? Explain.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?