A temperature of 35 degrees Fahrenheit is as cold as a temperature of -35 degrees Fahrenheit. 2. A city that has an elevation of 15 meters is closer to sea level than a city that has an elevation of -10 meters. 3. A city that has an elevation of -17 meters is closer to sea level than a city that has an elevation of -40 meters.

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

21

jk it's 20

step-by-step explanation:

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discount would be 35% off

step-by-step explanation: