Givens
The equation is miles = rate of travel * hours.
Let the rate of travel = k
Let the miles = y
Let the number of hours = x
Equation
y = k*x Is the answer that you seek <<<<<Answer
Answer:
d = 52
Step-by-step explanation:
The two angles form a straight line so they are supplementary
Supplementary angles add to 180
d+128 = 180
Subtract 128 from each side
d+128-128 = 180-128