I’m pretty sure it should be ,B
Answer:
$127.80
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
(-2,0) instead of substitution, you can use elimination which the 3x's will cancel out and you solve the system regularly
Grams measures mass not weight
1 g = 1000 mg
(5 g)(1000) = 5000 mg
A nickel's mass is equal to 5000 mg
To solve for x in the given equation;

We start by collecting like terms, as follows;

When a number crosses the sign of equality, the sign in front of it switches. Positive numbers becomes negative, and vice versa.
We would now have;

ANSWER:
The answer is x = -8