help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz! can anyone answer all of the unanswered questions in the picture plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answer:
1. 144 dollars
2. 450 minutes
3. 30 days
Step-by-step explanation:
1. 12x 12=144
2.4=60 minutes
60 x 7 = 420
420 + (60 x 1/2) = 450
(60 x 1/2 = 30)
3. 6= 10 days
18= 30 days