The answer to your question is A. Hence why people use the term "millimeter" "meter" and etc. (Mark me brainliest please )
Slope is -7 and the y-intercept is -2
Graphing is a good method when you have small integers or fractions as your slope.
Substitution is a good method when you have two equations, and when one of the coefficient of the variables is one.
Linear combinations is a good method when you have the same coefficient for the same variable in 2 different equations.
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So its g=5gallonsin a Minuit
