At noon, a tank contained 5 cm of water. After several hours, it contained 4 cm of water. What is the percent decrease of water in the tank?

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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

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

the answer is b