Answer:
4. / D.
Step-by-step explanation:

For 27) D
For 28) A
Hope that helps!
1800
LCM of 10 and 15 = 30
LCM of 6 and 20 = 60
30(60) = 1800
gallon = pint *0.125
gallon = pint / 8
0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+0.125+
0.125+0.125+0.125+0.125+0.125 = 2
16 would be the answer I believe, maybe I'm wrong, double check.
X=Juliana's age
r=Rich's age
(x+2)+(x*3)+5=R
You can solve it from there