Suppose you work at Summers Super Sonic Sizzling Tanning Salon. You are paid AED 27 for working 4 hours, plus tips. Your average tip is AED 0.75 per customer. A. What are your total earnings if you serve ‘x' customers? b. How many customers did you serve if your total earning were AED 5?

the correct answer is 5 6 and 7

if x = 1, then the answer is 3.5

what statement? is there an image?

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