Answer: 
Concept:
In a function f(x), it represents a function in terms of x or for x. Therefore, to find the values in the function, substitute values within the parenthesis to solve.
Solve:
<u>Given information</u>

<u>Need to find</u>

<u>Substitute (x + 4) to the position of x</u>

<u>Distributive property on the numerator</u>

<u>Combine like terms</u>


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The answer is C
short explanation: the two triangles are congruent so that would make BD equal to AC and if AC is 6 then BD is 6
hope this helps
Given that x is the number of chains;
7(4+3) = 7 * 7 = 49 feet
Answer:
324
Step-by-step explanation:
1 yards = 36 inches
36 x 9 = 324