The product of a number and four is at most -10

Question

The product of a number and four is at most -10

Answer 1

The product of a number (n) and 4 would be 4n.

"At most" in math terms is lesser or equal (≤)

Therefore...

4n ≤ -10

Answer 2

n=the number

"at most" means "less than or equal to"

4n≤-10

4n/4≤-10/4

n≤-2.5