Answer:
D.
Step-by-step explanation:

The step shown is an addition in which 10x is added to both sides of the equation. The property of equality is:
C. Addition Property of Equality
Answer:
you owe her 4.28
Step-by-step explanation:
30.00-25.75= 4.28
Answer:
90 degrees
Step-by-step explanation:
in a square the diagonals always intersect to form 90 degree angles.
Answer:
19.7ft
Step-by-step explanation:
o^2+a^2=h^2
\dpi{100} h^{2}=(10ft)^{2} +(17ft)^{2}
h^2=100ft^2+289ft^2
h=389ft^2−−−−−√
→19.7ft