Simplify (7 + 1)^2-(11+3^2)÷4.

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

What is this inequality notation? t is less then or equal to 2

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