For question 8, you'll have to calculate the price for three lamps and the sofa together. Take the total price of the items and multiply the percentage.
For question 9, the formula for simple interest is price(P) x rate(R) x time(T) / 100. Put in the information given:)
The markup will be $3.15
You will be paying 105% which is 1.05 as a decimal.
The you multiply. 3 × 1.05 = $3.15
in my opinion C is the answer
.... Thats what she said.
LOL jk bruh. ur answer is the top one,