The value of the expression. -5.6 - ( 3.4 - 6.8)

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

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.