After removing the hightes and lowest we are left with 8+7.6+7.6

8.0+7.6+7.6=23.2

Than the difficulty is 3.8 so we would do (3.8)*(23.2) = 88.16 rounded to the nearest tenth is 88.2

It says "Express your answer as a decimal to the nearest thousandth." so it'd be 0.943.

If it's going down than it would be 33/56.

1 4/3 = 7/3

So he needs 7/3*1/24 = 7/72 for 1 cookie.

7/72*18 is 126/73 or 7/4

Look here: https://web2.0calc.com/questions/algebra-question_133

23*158 = 3634.

3+6+3+4=16

Repeat step #3.

1+6=7

We can first find a common denominator.

We can use 56 here.

So 5/8 --> 35/56

and 4/7 --> 32/56

2/3 of the way there would be 34/56 = 17/28.

0.943 is the answer