The attendance at a seminar in year 1 was 500. In Year 2, the attendance changed by 100. What was the percent change in
attendance?
The percent change was 0.2%.
The percent change was 0.4%.
The percent change was 20%.
The percent change was 40%.
ANSWER FAST

20%

Step-by-step explanation:

To get the percentage change what u would do is the increase or decrease divided by the original number multiplied by 100

20

Step-by-step explanation:

i hate edgunity too

answer: 40.95

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