Cailtyn loves fish. In fact, she has 4 tanks in her room filled with a variety of tropical fish. The tanks hold 4200 milliliters, 3600 milliliters, 1500 milliliters and 2000 milliliters. She needs to empty each tank and refill them. She only has a one-liter bottle to use to fill the tanks. How many times will she need to fill the liter bottle to re-fill all of her fish tanks?

11.3, or 12 if you need a whole number

Step-by-step explanation:

1 L = 1,000 mL. After adding all of your mL, you get 11,300. Divide that by 1,000 to get 11.3. To fully refill all of her fish tanks, she would need to refill it 12 times, but if you're looking for an exact number, 11.3.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed