This morning, elena wrote a check in the amount of $42.50. this brought her balance down to –$14.25. suppose n represents elena's balance before she wrote the check.

which equation can be used to represent this situation?

a.
n – 14.25 = 42.50

b.
n + 42.50 = –14.25

c.
n – 42.50 = –14.25

d.
n – 14.25 = –42.50

yes

yes yes yes

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!