Which of the following navigation tools helped European sailors know how far they had sailed from the equator?

The magnetic compass was a tool sailors used to find direction. The astrolabe was a tool that helped sailors find their latitude –their distance north or south of the equator.

Explanation:

definitely a for sure. ill see and update if i get the answer

step-by-step explanation:

100%     = 120

1%= 120/100=   1.2

9%   = 1.2 x 9=     10.8

10.80 to the 120 to get $130.80