A plumber charges a rate of $65 per hour for his time but gives a discount of $7 per hour to denior citizens. Write an expression which represents a senior citizen's total cost for the plumber in 2 different ways.​

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step-by-step explanation: vsfdvsfvd

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

i would say b) is your answer

sorry if im wrong

step-by-step explanation: