Consider the equation and it’s solution. what number should be in the empty box?

2 should be in the box

Hello!

As you can see, if you multiply whatever is in the blank box by -15, you get 30. As you can see, this number is subtracted, so it is negative. So -15 multiplied by negative what is 30?

Well, it would be negative 2!

Therefore, our answer is 2.

I hope this helps!

where is the figure

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.