The fingernail will grow 3 millimeters in 30 days and 9 millimeters in 90 days.
It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
We have:
A fingernail grows about 0.1 millimeters each day.
In 30 days:
= 0.1×30
= 3 millimeters
In 90 days:
= 0.1×90
= 9 millimeters
Thus, the fingernail will grow 3 millimeters in 30 days and 9 millimeters in 90 days.
Learn more about the arithmetic operation here:
brainly.com/question/20595275
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