Can someone please help, ty!!
(Will mark brainliest)

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

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?

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)