Hi please i need the complete step-by-step solution for number 5. thank you ♥️

m = 8.

Step-by-step explanation:

Arithmetic mean 18 = (12 + 3m)/2

Cross multiply:

12 + 3m = 36

3m = 36 - 12 = 24

m = 24/3 = 8.

Check this

(3(8) + 12)/2

= (24 + 12)/2

= 36/2

= 18.

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

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23