Dear philip,
i just got back from a trip to the grand canyon last week. this was my first choice for a vacation. i had heard it was one of the seven natural wonders of the world. i went with my cousin, whom we all like. you will meet her someday. i heard you went to alaska. whose idea was that? it must have been freezing!
we took pack mules all the way to the bottom of the canyon. everybody was very tired near the end of the trip. all in all, it was a great trip, but i need to get back to my science paper. it’s due tomorrow.
which sentence from the passage contains a relative pronoun?

in the problem you wrote said that the taxi charges $0.070 per mile(which would be 7 cents per mile), but then in your suggested equation you have it as $0.70 per mile (which is 70 cents per mile).

the latter seems more realistic, so i will assume that the taxi costs $5.00 and charges $0.70 per mile with tolls costing an additional $3.50. and it asks you to find how far you can travel on $36.50.

let x the number of miles traveled. since the taxi charges $0.70 per mile, multiplying this by the miles traveled (x) will yield the cost of the taxi ride as far as how far it took you. then adding this amount to the cost of the taxi ($5.00) and the additional cost for the tolls ($3.50) will give you the total cost of the taxi ride ($36.50)

that is,

            (0.70)x + 5.00 + 3.50 = 36.50

adding the like terms on the left-hand side of this equation, we arrive at the following:

            (0.70)x + 8.50 = 36.50

subtracting 8.50 from both sides of the equation, we get:

            (0.70)x = 28.00

to solve for x, divide both sides of the equation above by the coefficient of x (that being, 0.70):

            x = 40

thus, you can travel up to 40 miles on $36.50

a term is used to describe a sudden revelation in a short story is "showing forth".