can you guys help me with both of these, if u help with one , tell me which one it is.

Answer:
12: 3 cups of flour
13: 152 words typed in 4 minutes
Step-by-step explanation:
3/4+x=1 1/2: 3/4+3/4= 1 1/2: 2 1/4+3/4= 3
38+x=78: 38+38=78: 114+38=152
please give brainliest