Chad is not correct
24x+4+2x=3(10x-1)
48 + 4 + 4 = 3(20-1)
56 = 60 - 3
56 ≠ 57
Gram and milligram are in the metric system and are for weight. Pound is the United States system and kiloliter measures liquids
B and D is correct
PS QT
GOOD LUCK
Answer:
30:49
Step-by-step explanation:
Take 49 and subtract 19 from it that leaves you with 30. therefore you have 30 black horses.