What is x the length of the diagonal to the nearest whole number

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

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line