Mara simplifies the expression: -(7x - 3y) + 2(x + 4). Her work is shown. In what step does she make a mistake?

Correct steps are shown

Correct simplified expression is:

Solution:

Given that: Mara simplifies the expression

Correct steps are:

From given,

Use the distributive property,

a(b + c) = ab + bc

Therefore,

Group the like terms

Thus the expression is simplified

bdhfnfhjffjkfjfjfjjf

answer

a) the midrange of the data set shown is 85.5

step by step explanation

let's find the midrange.

the midrange is nothing but add the greatest value and the least value, then divide it by 2.

here the greatest value = 99

the least value = 72

midrange = (99 + 72)/2

= 171/2

midrange = 85.5

you.