Answer:
Beginner. Use a paper strip coated in a pH indicating dye. Dip the strip into the water and wait for the strip to change color. ...
Intermediate. Use a pH testing kit for liquids. ...
Advanced. A digital pH meter can be used to obtain the most accurate reading of the pH level.
Step-by-step explanation:
i just got a screenshot of this hopefully this helps :)
Estimate, ok
area=side^2
if we round
25^2=625
25.3 is slighly bigger so maybe 632 squaer centimters or something
Answer:
Check pdf
Step-by-step explanation:
2y - 3x = 4
2y = 3x + 4
y = 3/2*x + 2
y = kx + b ==>
k = 3/2 = 1,5