The price of a smart watch is $109.99 and the sales tax is 6.5%.

what is the total cost of the smart watch?

enter your answer in the box

no not all of them.

step-by-step explanation:

some of them have a square base.

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

answer: your gay

step-by-step explanation:

you dont know math

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