A circle is 360° all the way around; therefore, if you divide an arc's degree measure by 360°, you find the fraction of the circle's circumference that the arc makes up. Then, if you multiply the length all the way around the circle (the circle's circumference) by that fraction, you get the length along the arc.
10 I think or 10.476 I think that's the answer I just think
7 + 0.4 + 0.03 + 0.006 is expanded form
Word form is
Seven and four hundred thirty-six thousandths
Hope this helps :)