Please provide steps and explanations if possible.

Letf(t) = x/3 + :32. (a) Write If: f (t)dt as a limit of Riemann sums, taking the sample points to be right endpoints. DO NOT EVALUATE THE SUM. (b) If f (t) represents the rate at which a population of ants is growing t years from the year 1990, interpret the integral f 1255 f (t)dt in plain English