Seth is trying to find the unit price for a package of blank compact discs on sale at 10 for $5.49. find his mistake and correct it

The unit price of disc is $0.55

Step-by-step explanation:

Seth is trying to find the unit price for a package of blank compact discs on sale at 10 for $5.49.

∵ The price of 10 blank compact discs = $5.49

∴ The price of 1 blank compact disc =  

                                                            = $0.549 ≈ $0.55

The unit price for a blank compact disc would be $0.55

If Seth got the same answer, he is correct.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

19.side- angle- side

20. angle- side- angle

step-by-step explanation: