<span>64 boxes of pencils per case x 2.5 ounces per box ÷16 ounces per pound = pounds per case</span>
(3/5) : (15/6) ===> (3/5) X (6/15) = 18/75 =6/25
Using the quadratic equation we get:

Factoring out 2 we get

Factoring out the imaginary number:

So b.
4.true
5.false
6.true
7.true
8.true
Answer:
8 months and $320
Step-by-step explanation:
To find when 30m + 80 = 40m, isolate m.
30m + 80 = 40m
Subtract 40m from both sides.
-10m + 80 = 0
Subtract 80 from both sides.
-10m = -80
Divide both sides by -10
m = 8
To find the cost, substitute 8 as m in one of the equations.
40(8) = 320