Answer:
14.73
Step-by-step explanation:
10.31/70=0.147...
100 (0.147...)=14.73
7.217
17 i think
is there a picture?
oi bruv
I believe it's a^2 * b^2 = c^2
a^2 * 9^2 = 15^2
hope this helps! :)
