GIVING BRAINLIEST AND 15 POINTS PLS HELP IN SQUARE INCHES, WHAT IS THE AREA OF THE COMPOSITE SHAPE?

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?