Final answer:
There are approximately 2 teaspoons of medicine in 1 dose.
Step-by-step explanation:
To find the approximate number of teaspoons in 1 dose of medicine, we need to substitute the given value of x (10 mL) into the equation y = 0.2x.
y = 0.2(10) = 2 teaspoons.
Therefore, there are approximately 2 teaspoons of medicine in 1 dose.