Answer:
x + 10 + 3x + 28 = 90
4x = 52
x= 13
Step-by-step explanation:
Angle B = 67
We are given

where
y is the cost in dollars
x is distance in dollars
now, we can find derivative



so,

So,
the rate of change of the cost in dollars with respect to the number of miles is 1.5.........Answer
Answer:
2933.46666667
Step-by-step explanation:
It let me answer now
You divide 12 by 1.56 because a dozen is 12 of something. This gives you about 8 cents per