How does the value of a decimal changes as you move to the left or the right in a place value chartexplain how the value of a decimal changes as you move to the left or to the right in a place value chart

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.

Anyone know? is appreciated! will mark brainliest if correct!

Based on the diagrams, what is the value of x?