Chloe has a 20 gift card she uses the gift card to buy 10 music downloads for 0.89 each. she wants to use the gift card to buy a 12 digital movie does chloe have enough money on the gift card to buy a digital movie does chole have enogh money on the gift card to buy the digtal movie let d be the amount left, in dollars, on the gift card after m music downalds The equation blank can be used to represent the sitition

chole has blank left on the gift card after buying the music downloads
chole blank enghoug money on the gift card to buy the movie.

she spends 8.90 dollars for the music  

Step-by-step explanation:

you just multiply them

ii6tyhj7 juj3yyj333ju jmyhthhtk7h jg hajj jiijh

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