Hours studying 13.8
GPA
1.42
18
16.7
3.7
3.21
18
4
0.7
21.9
1.11
3.69
1.42
13.8
18
4
15.5
16.7
3.92
3.21
3.8
18
3.5
19.7
20
9.2
4
2.23
3.77
3.92
19.5
15.5
0.7
21.9
1.11
3.69
0.7
1.11
16.7
What do you think the purpose of this survey is? Exp

The purpose of the survey is probably to determine whether the number of hours studying correlates with a student's GPA.

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

my guess would be b and d, but i didn’t actually get out the pen and paper. lol