The expression - 300 + 19z represents a submarine that began at a depth of 300 feet below sea level and ascended at a rate of 19 feet per minute. What was the depth of the submarine after 5 minutes?​

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

answer: 1475

step-by-step explanation:

becuase you have to know what they are asking you

you can use a^2+ b^2=c^2