(9^2)+(22^2)=x^2
81+484=x^2
565=x^2
x is approximately 24 units
Answer: 3.4
The total number of lessons to teach is 6*8.5 = 51 lessons.
15x = 51
X=3.4
I'm sorry I'm not home so I can't tell you the answer to this but what I can tell you is put together the xy and then put together the -13-20. Hope this helps.
Answer:
-2
Step-by-step explanation:
5 + (-7)
5 - 7
-2
Please let me know if something's wrong!
