What is the first term and explicit rule for the following geometric sequence? 3, 15, 75, 375, 1,875, ...
O A1 = 3; an = 5(3)n-1
O A1 = 3; an = 15(3)n-1
O A1 = 3; an = 3(5)"-1
(
O A1 = 3; an = 3(3)n-1

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!