Is a line segment that has both endpoints on the circumference

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Arrange these numbers from least to greatest 3/5 5/7 2/9

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"