The function p(t)=21000+1800t computes the population of a city from years 1980-2001, with t=0 representing 1980. what is the domain and range in correct interval notation?

Acircle has a circumference of 7.850 units. what is its radius?

Aline passes through the points (5,4) and (2.1). part a.) what is the slope of the line that passes through these points? show work. part b.) what is the equation of the line that passes through these points. show work. part c.) where does the line intercept on the x& y axis? show work

Which of the following values have 3 significant figures? check all that apply. a. 10.1 b. 100.05 c. 120 d. 129