Please help this isn't a test it's just work I'm missing

1. 81

2. -9

3. -20

4. 4

Step-by-step explanation:

1. a negative times a negative always makes a positive

2. dividing a positive and a negative always gives you negative

3. multiplying a negative and a positive always gives you negative

4. dividing a negative and a negative always gives you positive

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.