Write an expression to represent "a number plus 1/3 of the number." Explain why your expression represents the situation.

Step-by-step explanation:

a number plus is the following

let's say that the number is x

so we have

1/3 of the number

the number is x so it's 1/3 of x

add both expressions

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.

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)