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7. Let h(x)=25-22 and j(x) = 7x-1. a. What is the domain of h(x)? b. What is the domain of j(x)? c. Let k(x)

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7. Let h(x)=25-22 and j(x) = 7x-1. a. What is the domain of h(x)? b. What is the domain of j(x)? c. Let k(x) = h(x) + j(x). What is the domain of k(a)? h(x) d. Let f(x) = j(x) What is the domain of f(x)?

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