RDY and NDA are:
Check all that apply.

A. vertical angles.
B. supplementary.
C. complementary
D. a linear pair.

A and C if thats wrong add D

Step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

answer4 to the second power is 16

and 4 to the third power is 64,