Mr Nair had Rs 2,500 in his bank on 01.01.2014. He deposited Rs 1,250 in January and withdrew Rs 750 in February. What was Mr Nair’s bank balance 01.04.2014 if he deposited Rs 500 and withdrew Rs 300 in March ?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

This is different from the first one can someone me

Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.