The market equilibrium point for a product is reached when 12000 units are produced and sold at $27 per unit. the manufacturer will not produce any units at the price of $6, and the customers will not buy any at the price of $69. find the supply and demand equations, assuming they are linear.
the equations should express price p in terms of quantity q.

supply equation: p=
demand equation: p=

If the equilibrium is such that only 12000 units are sold for $27, then the total earnings from the given scenario is $324,000. The supply equation would then be,
        supply: 324000 = 6p   ; p = 324000/6 = 54000
        demand: 324000 = 69p ; p = 324000/69 = 4695.65 ≈ 4696

She will pay 7500 as interest over 5 years .

She will pay 3500 over the year.

Step-by-step explanation:

Leah borrows 10,000 over 5 years at a simple interest rate of 15%.

Now, Principal(P)= 10,000

         Time(T)= 5 years

          rate percent (R)= 15%

Let, Interest be I

We know that, I =

                    Or,I = (10000×15×5)÷100

                    ∴   I = 7500

  Amount = Principal + Interest

                = 10000 + 7500

                = 17500 for 5 years

Amount for one year = 17500÷5 = 3500