How many of the first 1000 positive integers are multiples of both 4 and 5 but not 6 ?

This question awards 100 ! i really don’t want to fail i will also mark you !

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line