What is (f ⋅ g)(x)?

f(x) = x^4 − 9

g(x) = x^3 + 9

(f ⋅ g)(x) =

x⁷ + 9x⁴ - 9x³ - 81

Step-by-step explanation:

(f⋅g)(x) is just another way of writing f(x) ⋅ g(x).

f(x) ⋅ g(x)

(x⁴ - 9) (x³ + 9)

If you wish to simplify:

x⁷ + 9x⁴ - 9x³ - 81

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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more i think

hope this !