El producto de 5 por un numero al cuadrado?

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

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?