Hunter is trying to write a proper scientific question. he is thinking of these three options: a. what is gravity? b. how does the force of gravity affect objects? c. what effect does gravity have?

A) Gravity is the force that pulls you down towards the earth.

B) It can effect objects like glass.  For example if you have a glass plate, gravity pulls it down, and causes it to break

Step-by-step explanation:

the answer is 21%.

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