The function j(x) = 39x represents the number of jumping jacks j(x) you can do in x minutes. How many jumping jacks can you do in 5 minutes?
(1 point)
To find out how many jumping jacks you can do in 5 minutes, substitute x = 5 into the function j(x) = 39x.
j(5) = 39(5)
= 195
Therefore, you can do 195 jumping jacks in 5 minutes.