days would the water supply last for 9 people?

What is the formula for the area of a trapezoid?

sin(45)

cos(45)

sin(30)

What is the formula for the area of a parallelogra

a^2+b^2>c^2 if a triangle is...

For an inequality -y<0<x-y<0<1-y, how

How can you tell if a number is divisible by 12?

How can you tell if a number is divisible by 6?