A4500 square foot roll of plastic wrap costs $23.95. if 120 square feet is need for a party game, what is the monetary value of that 120 square foot piece of plastic wrap?

For this case, the first thing to do is define a variable.

We have then:

We write now the proportion that models the problem.

We have then:

From here, we clear the value of x.

We have then:

Calculating we have:

the monetary value of that 120 square foot piece of plastic wrap is:

a=r

d=q

c=p

b=s

hope this !

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°