? please answer this

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)