Question

is this question an equation or inequality
the difference of 7 and three times a number n is at least 12

Answer 1

Think of the language used. "is at least"

I think I got "at least" an 80% on that last test.

You use at least to refer to the minimum you'd expect. But you could score anywhere between 80-100%. Therefore, "at least" is an inequality.

7 - 3n is at a minimum 12 --> 7 - 3n >= 12

Answer 2

thank you !