A bedroom is initially square-shaped with each side x feet long. The room is
then expanded so that the length of the room is increased by 3 feet, and the
width increased by 4 feet. Choose the expression which represents how much
bigger the area of the new bedroom is than the old bedroom.

7x+12

Step-by-step explanation:

length=x

width=x

area=x²

new length=x+3

width=x+4

area=(x+3)(x+4)=x²+7x+12

increase in area=x²+7x+12-x²=7x+12

answer:

some responsibilities that come with having a checking account -

1. we have to maintain check register with exactness to avoid checks being returned for insufficient funds which is called bouncing a check.

2. we need to update our check register each time we make a transaction using a convenience card. updating check register will   save   us from   overdrawing of checking account.

3. read the agreement the bank gave you when you signed up for our checking account. this includes all the fees and the minimum balance we need to keep in our account to avoid maintenance charges.  

explanation:

note : -   checking account is a transactional deposit account. we can use it to deposit and withdraw funds. money in a checking account is very liquid. it   can be withdrawn using electronic debits, automated cash machines, or checks among other methods.

the equation is going to be