The list shows the yards gained and lost during the first several lays of a football game: 8,4,3,7,-15,20,5,-12,32,1
how can i write an expression that shows how to compute the average of gain or loss per play. then compute the average

Solve for mean, +5.3 yards per play on average

Step-by-step explanation:

Add all the numbers together, which gives 53 yards. Now, divide by the number of plays.

53/10=5.3 yards per play increase on average

i do not know this sorry : (

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w