Katie invested a total of $8000 part at 4% simple interest in part at 5% simple interest. At the end of year one the investments how to earn $374 interest. At the end of year one the investments had to earn $374 interest. How much was invested at each rate

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step-by-step explanation:

from the graph attached below:

domain of graph is the value of x for which the given function profit function p(x) is defined.

(a) the domain represents the number of years for which the outlet will earn a profit.

range of profit function defines the lowest to highest value of profit earned.

(b) the range of this function is (0 , 160 ). for this function, the range represents the outlet's profit earned.

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step-by-step explanation: