help please
in 1920 the record for a certain race was 45.9 seconds. In 1960 it was 44.7 sec. let R(t) = the record in the race and t=the number of years since 1920.
a. find a linear function that fits the data
b. use the function in (a) to predict the record in 2003 and in 2006
c. find the year when the record will be 43.26 sec.
round to nearest hundredth

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hi dumbcow what is the ans to the other two questions b and c

use R(t) and substitute in t=83 and t=86
for part c
43.26 = -.03t +45.9
solve for t

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