Why is it important to take the measurements on the same date?
a. those are the same dates that all biologists use to take water clarity samples.
b. using the same dates makes it easier to remember to take samples.
c. using the same dates makes the second sample dependent on the first and reduces variability in water clarity attributable to date.
d. using the same dates maximizes the difference in water clarity.

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation:

v=1788.75

step-by-step explanation:

i belive that is the answer

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.