Have my maths practice paper due today please help me out by answering as many as you can.

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples