Answer:
The correct option is 4.
Step-by-step explanation:
The given expression is

Simplify the given expression.


![[\because x^mx^n=x^{m+n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20x%5Emx%5En%3Dx%5E%7Bm%2Bn%7D%5D)

Therefore correct option is 4.
Answer:
531 in^2
Step-by-step explanation:
21 x 18 = 378 in^2
17 x 9 = 153 in^2
378 + 153 = 531 in^2
That it has the highest y-intercept of all of the three linear functions.
(and that the question could be worded better, but don't put that in your answer)
If we draw a diagonal which will also be a transversal DB, then we get ∠ADB is congruent to ∠CBD by Alternate interior angles.
It will be the first option.