The answer is D. 3x-1. hope this helps !
20 and 40 don't belong, 1x1 is 1,2x2 is 4, and you would keep going and when you hit 5, 5x5 is 25 and 7x7 is 49 not 40
Answer:
B. 15.
Step-by-step explanation:
In order to get this answer, we just need to substitute the value of x in the formula and calculate the answer. Let's rewrite the expression with the substituions:
4((5)+5) ((5)+1) / ((5)+3) ((5)-3) = (40) (6) / (8) (2)= 240/16= 15.
