![f(x)=-3x](https://tex.z-dn.net/?f=f%28x%29%3D-3x)
Substitute x = 5 in the equation.
![f(5)=-3(5)\\f(5)=-15](https://tex.z-dn.net/?f=f%285%29%3D-3%285%29%5C%5Cf%285%29%3D-15)
Therefore, the answer is -15 or last choice when x = 5.
Answer:
x=8.16
Step-by-step explanation:
x=the money before
2x=doubled
3x=24.50
x=8.16
5X-20=4X+7
5X-4x=20+7
X=27°
3) an $8 delivery fee and $1.50 per litre of water
This is because the $8 is a constant baseline, then adding $1.50 times the amount of litres purchased.
Answer:
480 different skirt-blouse-shoe outfits
Step-by-step explanation:
the product rule applies:
![(10)(6)(8)=480](https://tex.z-dn.net/?f=%2810%29%286%29%288%29%3D480)
Hope this helps