Which tables show a direct variation?

choose all answers that are correct.
a.
x y
4 2
8 4
12 6

b.
x y
1 0.6
4 2.4
7 4.2

c.
x y
2 10
3 18
4 28

d.
x y
5 1
10 2
20 3

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3