To find your answer you would divide 21 by 3 which would be 7, once you've got 7 you would multiply it by 9 which would give you the amount of old houses that there is which would be 63.
Answer:
x = 7
Step-by-step explanation:

Answer:
13.9 or 14
Step-by-step explanation:
a^2 + b^2 = c^2
5^2 + 13^2 = c^2
25 + 169 = 197
square root 197 to get c
c = 13.9 (14 rounded up)
Helpful thing to note is that the hyptoenuse will always be longer than your "long side" of the triangle
Answer:
4. (d, the last one)
5. (a, the first one)
Step-by-step explanation:



To multiply powers of the same base, add their exponents.

Add 5 and 2 to get 7.

- The first option <em><u>n⁷</u></em><em><u> </u></em>is the correct answer.