I need help with this question plz thx

Step-by-step explanation:

Hey there!

Given,

Combine like terms

Hope this helps :)

= -3y³ - 5x

Step-by-step explanation:

x - 3y³ + 3x³ - 5x - x³ - x - 2x³

= -3y³ + (3x³ - x³ - 2x³) + (x - 5x - x)

= -3y³ + 0  - 5x

= -3y³ - 5x

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet