In her science fair project about the amount of water needed to dissolve 2 ml of a certain substance at room temperature, Staci got an average value of 32 ml. What should Staci do for the best chance to reproduce that data again?

1. improve the experimental design
2. change it to include a control group
3. follow the same steps exactly
4. decrease the number of trials

tangent

step-by-step explanation:

probably the last option

step-by-step explanation:

c-   36

taxicab circle radius 9 has 4(9) = 36 points

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;