$69.69 - 51.54 + 73.64 = ? + 32.42$

If $m$ and $n$ are positive integers and $(m-n)$ is an even number,then $(m^{2}-n^{2})$ will be always divisible by

$9229.789 - 5021.832 + 1496.989 = ?$

The quotient arising from the division of $24446$ by a certain divisor is $79$ and the remainder is $35$. What is the divisor?

Rachita enters a shop to buy ice-creams,cookies,and pastries. She has to buy at least $9$ units of each. She buys more cookies than ice-creams and more pastries than cookies. She picks up a total of $32$ items. How many cookies does she buy?

$24$ is divided into two parts such that $7$ times the first part added to $5$ times the second part makes $146$. The first part is