Calculate correct to three significant figures length of Arc with subtend an angle of 70 degrees at the centre of circle of radius 4 cm

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

Rewrite so the subject can be y in the formula d=m-y/y+n

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?