I will venmo if someone can please help me

Here's link to the

cutt.ly/tz3yDpb

14.967

Step-by-step explanation:

Use Pythagorean Theorem to find the missing length.  

a² + b² = c²        

x² + 10² = 18²      

x² + 100 = 324         [Subtract 100 from both side]  

          x²= 224        

      √x² = √224     [solve the square root from both sides]

        x   ≈  14.967

supplementary, complementary, acute 45, supplementary, x=10

Step-by-step explanation: