The length of a field in feet is a function f(n) of the length n in yards. Write a function rule for this situation. A. f(n) = 12n

B. f(n) = 3n

C. f(n) =

D. f(n) = n

The answer would be B, because 3 feet makes a yard, so in order to get f(n) in yards, you have to multiply the n (which is measured in feet) by 3.

Hope this helps! :)

Option B is correct

the function rule for this situation is:

Step-by-step explanation:

Use conversion:

1 yards = 3 feet.

As per the statement:

The length of a field in yards is a function ƒ(n) of the length n in feet.

⇒Number of yards = 3n

Therefore, the function rule for this situation is:

Step-by-step explanation:

the answer would have to be b if I'm correct... B. f(n)= 3n

The answer is going to be B

Step 1:

The variable is the number of weeks needed to equalize Alexa and her sisters savings.

Step 2:

7x + 60 = 5x + 120

Step 3:

7x+60=5x+120

Subtract 60 from both sides.

7x+(60-60)=5x+(120-60)

7x=5x+60

Subtract 5x from both sides

7x-5x=5x+60-5x

2x=60

Divide both sides by 2.

2x/2 = 60/2

x=30

Step 4:

7(30) + 60 = 5(30)+ 120

210+60=150+120

270 = 270

Step 5:

To find the unknown amount of weeks, you need to rewrite the equation isolate x on the left-hand side of the equation. I just subtracting/simplified the equation until I could solve it.

(tbh got stuck on this one)