What is the value of the expression 2.6 x 10 to the 9th power over 1.3 x 10 to the 2nd power?

What is the smallest integer n such that n\sqrt{2} is greater than 20

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20