Miss watson runs 200m in 25 seconds work out her average speed per second

At a lunchron, guests are offered a selection of five different grilled vegetables and four different meats. in how many waya could one choose three vegetables and two meats?

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

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2