// this pseudocode segment is intended to compute and display // the average grade of three tests start declarations num test1 num test2 num test2 num average output "enter score for test 1 input test1 output "enter score for test 2 " input test2 output "enter score for test 3 " input test3 average = test1 + test2 + test3 / 3 output "average is ", answer end

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2