Freida's credit card has an apr of 13.73%, and it calculates her finance charge by using the daily balance method and a
30-day billing cycle. on september 1st, freida had a balance of $449.22. during the month of september, she made a
payment of $85.33 and a purchase of $60.99. how much greater will her september finance charge be if the purchase
occurred on september 7th and the payment occurred on september 20th than it would be if the payment occurred on
september 7th and the purchase occurred on september 20th?
a $0.13
b. $0.41
c. $0.72
d $0.28
select the best answer from the choices provided
0 a
b
oc
mark this and return
save and exit
next
submit

i dont know

step-by-step explanation:

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

the bolded word " farsighted" could be replaced with visionary.