B would be the best answer! I hope u have a nice day :)
mark brainliest?!
Answer:
x = 38°
Step-by-step explanation:
in the given question,
the two angles are complementary, because sum of their measures = 90°
so,
=》52° + x = 90°
=》x = 90° - 52°
=》x = 38°
Answer: 8
Step-by-step explanation:
15x+300=420
x = 8
Hope this helps!
To solve this problem you must apply the proccedure shown below:
1. You can rewrite the expression given in the figure attached, as following:

2. Simplify and by applying the exponents properties, you can substract the exponents of the variables
:

Therefore the answer is the option D: D.