A number multiplied by 9 gives `145.71`. What is the number?

What Is atomic number?

9 added to the product of two consecutive muitiples of 6 gives 729 . What are the numbers?

We know that sequence got by starting with any number and adding a fixed number repeatedly is called an arithmetic sequence.Example: 1,3,5,7,........ Like this we can form sequences by starting with any number and multiplying by a fixed non-zero number repeatedly. For example 1,2,4,8.......... In this sequence, one number multiplied by 2 gives the next number. Such sequences are called geometric sequences. The common number used for repeated multiplication is called common ratio. Write the geometric sequence with first term 2 and common ratio 3.

When 3 is added to a number, the its square gives 100 . Which is the number.

When the reciprocal of a number is subtracted from it, we get 1. What is the number?

The sum of a number and its reciprocal is 13//6 . What is the number?