A mass of gas occupies 1 L at 1 atm. At what pressure does this gas
occupy 2 litres?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11