1. School is 2 miles from home along a straight road. The table shows your distance from home as you walk home at a constant rate. Time (min) 10 20 30 Distance from home (mi) 1.5 1 0.5 a.) Is the relationship in the table proportional? No b. Find your distance from school for each time in the table. C. Write an equation representing the relationship between the distance from school and time walking. I ONLY NEED A. AND C.

step-by-step explanation:

how many centimeters did the level of the salsa go down by?

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