Here is part of a railway timetable, showing a reduced service due to essential works.
Telford Central
0759
0813
0815
0854
Oakengates
Wellington
Shrewsbury
0805
0907
0915
0920
Hayley wants to catch a train from Telford Central to Shrewsbury.
She can change trains as often as she likes.
How long will it take her to get from Telford Central to Shrewsbury
if she takes the fastest option?
hour minutes

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 clb she uses is a driver, so its a 2/5 chance she hits a 180-189 yard shot

step-by-step explanation:

the answer is  

c.

14,469 cubic feet

i know this one is right