Evaluate the expression for m = –1.

–21m2 − 11m − 30 =

Hope this will help u....

-40

Step-by-step explanation:

-21m^2 - 11m - 30

m = -1

Therefore

-21(-1)^2 - 11(-1) - 30

-21(-1 x -1) -11 x -1 -30

-21 x 1 +11 -30

-21 + 11 - 30

-10 - 30

-40

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.