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**girl in distress** question 1: ^ = power of

if 3x^2-2x+7=0 then (x-1/3)^2= ?

answer : -20/9 HOW DID THEY GET THAT? I DONT UNDERSTAND IT.

question 2:

the graph of which of the following equations is a straight line parallel to the graph of y = 2x

answer: 2x-y=4 HOW THEY GET THAT?

question 3:

An apartment building contains 12 units consisting of 1 and 2 bedroom apartments that rent for $360 and $450 per month, respectively. When all the units are rented, the total monthly rental is $4950. What is the number of 2 bedroom houses?

answer: 7 I thought I was doing this problem right with multipling 450

with each choice and then subtracting that from 4950 then

dividing that from 360 and thought the right answer would

be the difference I needed to make 12 units

but that didnt work so I dont know how they got that

answer.

question 4:

Have one square with a 125 written inside it. another little square with a 5 written in it. If the 2 square regions in the figures below have the respective areas indicated in the square yards, how many yards of fencing are needed to enclose the two regions?

answer:24(5 root sign over it) if that makes any sense to you. please help me.