How many liters of a 10% alcohol solution must be mixed with 30 liters of a 40% solution to get a 30% solution?
A 45 liters
B 15 liters
C 4.5 liters
D 1.5 liters

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?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

Is a square always, sometimes, or never a parallelogram