In one u. s city the taxi cost is $4 plus $0.70 per mile. if you are traveling from the airport there is an additional charge of $6.00 for tolls. how far can you travel from the airport by taxi for $27.50?

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: