The graph represents this system of equations
y=2x-4
Ty=1-3x

What is the product of the radical expression. (7-2square root) (8+2 square root)

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

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