Tell whether the set of ordered pairs satisfies an exponential function. explain your answer.
{(-2, 4), (-1, 2), (0, 1), (1, 0.5)}

For each increment of x, they value is halved.

This can be represented by the function f (x) =0.5^x. The initial value is one

astronomers is your final answer! : )

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)