Answer:#2 Experimental
Step-by-step explanation:
In an observational study, we measure or survey members of a sample without trying to affect them.
In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment.
Answer:
|4| - 2 = 2
|4| - 6 = -2
Step-by-step explanation:
Answer:
its too small to see
Step-by-step explanation:
Answer:
35 pesos
Step-by-step explanation:
12+8+15=35
Answer: 456
Step-by-step explanation:
idk if this is right i dont have anouf to be 100% sure but thats about right sorry if its not, i would try and put more info in next time to get a closer answer