Frazier has $1,200 in savings. he works because he is saving money for college, and he earns $9 an hour. if frazier saves 25 percent of his net pay, after 20 percent is taken out for tax, identify the expression which represents frazier's savings. a) 1.8x + 1,200 b) 3.6x + 1,200 c) 7.2x + 1,200 d) 9x + 1,200