The following table shows the cost for 444 fruits. For example, apples cost \$6$6dollar sign, 6 for 555 pounds. Fruit Cost (dollars) Pounds
Apples 666 555
Bananas 444 555
Peaches 555 444
Kiwis 999 666
Which type of fruit has a cost of \$1.20$1.20dollar sign, 1, point, 20 per pound?

Step-by-step explanation: 555

u what ?

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