Gabe Amodeo, a nuclear physicist, needs 60 liters of a 40% acid solution. He currently has a 20 % solution and a 50 % solution. How many liters of each does he need to make the needed 60 liters of 40% acid solution?

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18