Answer:
Step-by-step explanation:
49p9q3r24 7² 3² 3 24
81p12q15r12 9² 12 15 12
121p9q3r6 11² 3² 3 6
343p6q21r6 342 6 21 6
D on edge 2021
the answer is D on edge 2021
Your answer is 3x = 15
3x = 15
Since 3 is being multiplied by x, we divide both sides by 3. 3x/3 cancels out, and you're left with x.
15/3 = 5
x = 5
This is my take using algebraic methods.
≈12.53
107/4
