May somebody me with these problems; which i’ll be forever grateful for. i’ll give brainiest answer to the person who can do both! : )

a)Louisa : c - 0,15*c

New expression : 100% * c - 15% * c = 85% * c

Comparison : c - 0,15*c and 85%*c : the expressions are basically the same, except Louisa's expression is in decimal numbers, and the new expression is in percentage.

Louisa's expression is represented like substraction with decimal numbers, and the new expression is in percentage and it means the total amount directly.

b) width = w = 16 feet

lenght = l = 16 feet + 4%*16 = 16 + 0,04 * 16 = 16 * (1+0,04) = 16 * 1,04 = 16,64 feet

the area of the new room = w * l = 16 * 16,64 = 266,24 square feet

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

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