Step-by-step explanation:
Let,





Therefore,
The number = 135
Answer:
The $3.20 one
Step-by-step explanation:
The $3.20 one is cheaper because you get more.
3n+4=-5
do the opposite of adding 4. this means you have to subtract 4 from 4. whatever you do to the problem, you must do to the answer. now subtract 4 from -5.
-5-4=-9
since 4-4=0, we can take 4 out of the equation. now you have:
3n=-9
now divide -9 by 3
-9/3=-3
n=-3
hope this helps :)
The answer should be -7°. What I did was just subtract 7 for each day. Im pretty sure there is a faster way, but this is how I did it
Answer:

Step-by-step explanation:
We want to simplify

Recall the reciprocal property:

We apply this property to get:

Also apply this property of exponents to get:


We simplify using the product property of exponents to get:
