Question

the product of a number and 5 is atleast 45
write an equation for that

Answer 1

product means multiply, at least means greater than or equal to

The product of a number and 5 is at least 45:  5n ≥ 45

If asked to solve, divide 5 from both sides: n ≥ 9

Answer: 5n ≥ 45

Answer 2

$5n \geqslant 45$