A department store advertises a sale where the customer chooses the discount, a customer may choose a flat discount of $20 off any purchase or 20% off the total purchase price. the final purchase price of an item was $175.
A. what are the possible prices of the item before each discount?
B. Which discount represents a bigger savings in cost for the customer?

175 - 20 = 155

175 × .20 = 35

175 - 35 = 145

the best answer is the 20% off

hope it helps

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

18.8cm hope i at all

step-by-step explanation: