Will give brainliest if right, please help me with this math question

84 is 60% of 140!

To get this answer, you have to do 84 x 100 and you get 8400: Then you divide 8400 by 60 and get 140.

140

60/100=84/x

x=84×10/6=140

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

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.