First replace y with 15.
1/5x-10=30
Then just solve from there.
x=200
Answer:
81
Step-by-step explanation:
u multiply 9 x 9 not 9x2
3x3x3x3x3 and so on that’s how the powers work you would have to multiply 3 times itself 20 times I sure hope this helps 3 to the 20th power would equal 3486784401
I believe your answer is D, because vertical angles are congruent