Answer:
Part A) The linear expression that represent the total field goal points scored in the first two quarters is (3x-4)
part B) The linear expression that represent the total points scored in the game is

Explanation:
Part A) we know that
To find out the total field goal points scored in the first two quarters, sum the field goal points scored in the first quarter plus the field goal points scored in the second quarter
we have that
1st quarter= 2x-6
2nd quarter = x+2
therefore

Group terms

Combine like terms

therefore
The linear expression that represent the total field goal points scored in the first two quarters is (3x-4)
Part B) we know that
To find out the total points scored in the game, sum the field goal points scored in the first quarter, plus the field goal points scored in the second quarter plus the field goal points scored in the third quarter, plus the field goal points scored in the fourth quarter, plus the total free throw points.
we have that
1st quarter= 2x-6
2nd quarter = x+2
3rd quarter=2x
4th quarter=x-6
Free throw points =9
therefore

Group terms

Combine like terms

therefore
The linear expression that represent the total points scored in the game is
