Answer:
Y = Q + 44
Step-by-step explanation:
We can easily write an equation for this scenario by making a variable for the unknown number of yards at the start of the first quarter (which would be represented by the letter Q) and then adding or subtracting the gained/lost yards in the second quarter. This would give us the total yardage for the first half of the game which will be represented by the variable Y.
Y = Q + 62 - 21 - 15 + 18 ... we can simplify this by adding and subtracting the given values
Y = Q + 44