Which procedures were followed in this lab to decrease experimental error? Check all that apply. using different volumes of solution during each step
using three different temperatures instead of only two
using different types of vinegars with different chemical formulas
using water as a baseline for comparison
using different types of limestone in each step

the fact that your name is twinkie makes me not wanna you at so im not

the index of refraction of the second medium is higher. i just took the test trust me !

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles