Identify the sentence type. Although my favorite food is steak, Tom's is macaroni and cheese; he hates steak.
a. simple
c. complex
b. compound
d. compound-complex

compound complex

Explanation:

it has the independent dependent clause and the colon

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.