One way of doing this is to write the equation of ratios (15 screwdrivers / 45 screwdrivers) = ($300 / x). Solve this equation for x. To do this, you might try multiplying both sides of this equation by x to eliminate fractions.
Another way is to obtain the unit cost of each screwdriver and then multiply the result by 45 screwdrivers.
Your answer is 4 radical 2.
5) 74.925
6) 470
i think this is correct but i'm not completely sure
16 lesson. The equation is 240÷15=16
And like I said 240÷15 is 16
So here I hope it helped You
~jZ