B.) thousandths because the first one is tenths and the second is hundredths. Also because it is after the decimal
I believe this is pythag
15^2 x 11^2 = 27225
(square root) of 27225 = 165
165ft
She should use 13 factors.
All 13 factors are the same thing . . . 7 .
7^13 should be written as 7¹³ .
It means: 7·7·7 · 7·7·7 · 7·7·7 · 7·7·7 · 7