See attachment for Trig ratio problem

Question 13 of 451 pointwhich statement correctly describes the inverse of the following function? a. it is negative.b. it is a horizontal shift.c. it is not a function.d. it is a function. give an explanation as to why you chose that answer. (i think its either a or d.)

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Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?