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

the correct answer is A..!! I think...:(

the line of

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus