Pls make it right. and need it quickThis item has two parts Mitena is buying hair scrunchies. The cost for 20 scrunchies is $3.00.
The cost for scrunchies, c, is proportional to the number of scrunchies, n

Part A.
Create an equation using n and c.
Part B.
Mitena has $7.25.
What is the maximum number of scrunchies Mitena can buy?

the answer to the expression is 83

c

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

step-by-step explanation:

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