The following graph shows the time required to install fencing of different lengths. Which statements about the graph are true?
Choose all answers that apply:

(Choice A)
The point (2, 30)(2,30)left parenthesis, 2, comma, 30, right parenthesis shows that the cost is \$30$30dollar sign, 30 for 2 \text{ m}2 m2, start text, space, m, end text of fencing.

(Choice B
The point (4, 60)(4,60)left parenthesis, 4, comma, 60, right parenthesis shows that it takes 444 hours to install 60 \text{ m}60 m60, start text, space, m, end text of fencing.

(Choice C)
None of the above

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step-by-step explanation:

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation:

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.

there are no answer choices

step-by-step explanation: