Answer:
○ A) 21 ft.²
Step-by-step explanation:

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Answer:
The answer is B
Step-by-step explanation:
The formal is A = a+b/2 time h
You just substitute the variables and get the answer
Is there a picture to this?
Answer:
; k=25
Step-by-step explanation:

7 less than 25 (or K) is 18.
Answer:
37
Step-by-step explanation:
f(4) just means use 4 for x. The table has all the x's across the top (sometimes they are in columns instead) The f(x) in the second row is the output that goes with each x. When x is 4, the f(x) is 37.
All is one math sentence:
f(4) = 37