Calculate (reduce to smallest term) 8 2/5 - 3 4/5

I have 3 questions First: "Mia is 18 and Nova is 33. In how many years will Nova be 3/2 of Mia's age" Second: "Alice is 9 years old, Brad is 12 years old / In how many years will alice be 6/7 of brads age.

The combination for a brief case is 3 15 what is the prime factorization for 3 15

The circumference of a circle is 31 in. What is the area of the circle?

What is-2x+6y=6 7x+8y=-6?

A=3b+2 then b=? What does B equal?

Your boss gives you $10000 and wants to know how many bananas you can afford. The only banana dealer in town sells bananas at a starting price of $1, but for each subsequent banana he adds 1% to the price of the previous banana you purchased.

David orders a total of 15 bags of wood that weigh a total of 63.75 lb. how much does one bag of wood weigh?

Sam packed 42kg of rice into one big bag and 6 small ones which are of the same size. the big bag contained 3/7 of the rice. how many kilograms of rice did each small bag contained?

Which of the following expressions is written in scientific notation? 0.3 x 104 2 x 10-5 10 x 103 12 x 10-3

What is the slope of the line? y+3 = - 4 (9x+7)