Answer:
Pythagoreas Theorem
Step-by-step explanation:
a^2+b^2=c^2
4^2+b^2=15^2
16+b^2=225
b^2= 209
14.45=b
-15 + x
4320
B. 7
-8/45
I hope this helped!
-2/3 ÷ 3 3/4
