Answer:
$168
Step-by-step explanation:
28x6
= 168
-5-(15y-1) = 2(7y-16) - y // question
-5-15y+1 = 14y-32-y // distribute
-15y - 4 = 13y - 32 // subtract
-28y = -28 // divide
y = 1
1 m = 100 cm
Multiply:
100 * 400 = 40000
So she ran 40,000 centimeters.
1 2/3 + 3 1/3 = 5/1
5 5/6 - 5/1 = 5/6
5/6 was left