Doctors use intravenous (IV) drips to deliver fluids and medications to patients. Suppose an IV drip starts with 1,000 ml of saline and dispenses fluid at a rate of 2.5 ml per minute.

It will finish dripping after 400 minutes which is equal to 6 2/3 hours

Step-by-step explanation:

100/2.5 is 400 so it will take 400 minutes which is equal to 6 2/3 hours

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

answer: it is a.,b.,d.

step-by-step explanation: