Find each f(c) using synthetic substitution. f(x)= -x^7+4x^6-4x^5-6x^4-3x^3-6x^2-x-2; c=-5

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

step-by-step explanation:

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140

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