Estimate the sum or difference. 16/17 + 3/17

A: 19/17
B: 9/34
C: 1/2

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

Which point has an coordinates of (2,0) ? a