Please answer this
!!!

8%

Step-by-step explanation:

The perimeter will be 2*(30+20)=2*50=100 cm

The new length will be 30+30*10/100=30+3=33  cm

The new width will be 20+20*5/100=20+1=21  cm

The new perimeter will be 2*(33+21)=2*54=108  cm

so  108=100+x*100/100

it  will increase  by x= (108-100)*100/100 % =8%

d. 9

step-by-step explanation:

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