Help me with this, please

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?