A number is between 40 and 45. It has prime factors of 2 and 7. What is the number? ​

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

Which expression is rational? 6. , square root two, square root 14, square root 49

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?