A bag contains 6 red marbles, 5 purple marbles, and 7 yellow marbles. How many additional red marbles must be added to the 18 marbles already in the bag so that the probability of randomly drawing a red marble is 3/5??

What is the square root of 45? (step by step working plz)

Come up with a new linear function that has a slope that falls in the range 10 m − < < . choose two different initial values. for this new linear function, what happens to the function’s values after many iterations? are the function’s values getting close to a particular number in each case?

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