What is the theme ir message about scientific advancement

Which sentence uses the past tense of to study correctly? a. mark is studying for his math test with margie. b. mark will study for his math test with margie. c. mark studied for his math test with margie.

7. a line of symmetry divides a design so that every point on one side of the line coincides a point on the other side of it determine how many lines of symmetry each figure below has then draw all the lines of symmetry. show your work

May someone me answer these questions