Please please help me on this one answer this question

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.

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other