Trick question 5+5-5=+5+10-10*2

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

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents