When 18 is subtracted from six times a certain number ,the result is -42 what is the number

The value for such given number is -4.

Step-by-step explanation:

Let the given number = m

So, according to the question:     6 m - 18  =  -42

Now, solving for the value of m,

6m - 18 = -42 ⇒   6m = -42  + 18

⇒ 6m = -24

or, m= -24/ 6 = -4

So, m  = -4

Hence the value for such number is -4.

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.