At a supermarket, a 6-ounce bottle of brand a salad dressing costs $1.56. a 14-ounce bottle costs $3.36. a 20-ounce bottle costs $5.60. what unit prices do you need to know to find the best buy? what is the best buy?

1) If 6 ounce bottles of Brand A  salad dressing costs= $1.56

Cost of 1 ounce bottle= $1.56÷6

Here , cost of one ounce Bottle= $0.26

2) if 14 -ounce bottle costs= $3.36

Cost of 1 ounce bottle= $3.36÷14

Here , cost of one ounce Bottle= $0.24

3) if 20 -ounce bottle costs= $5.60

Cost of 1 ounce bottle= $5.60÷20

Here , cost of one ounce Bottle= $0.28

Hence, the best price is $0.24 per ounce

Hence, we should buy 14 ounce bottle costs $3.36

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

answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

step-by-step explanation: mark as brainlest reallly need it thx