1. [15 pts] What is the value of the variable after the whole instruction executes. a.int a = 6 + 3 * 2; b, int b=15 + 8 / 2 * 4; c, int c = (6 + 15) / 5 /(2 + 3) ; d, double d (54 % 7) * 2; e, double e=34 / 5 + 6.5-4.25; e=