Gianna makes $2.50 an hour plus tips as a server. patrick makes $7.75 an hour as a cashier. if they both work 4 hours, how much more money in tips does gianna have to make to earn as much as patrick?

ans789

step-by-step explanation:

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sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.