Answer:
![2.5](https://tex.z-dn.net/?f=2.5)
Step-by-step explanation:
We want to evaluate
when a=1 and b=5.
We just have to substitute the value of a and b into the given expression and simplify.
![(1)(5)-0.5(5)](https://tex.z-dn.net/?f=%281%29%285%29-0.5%285%29)
This simplifies to:
![5-2.5](https://tex.z-dn.net/?f=5-2.5)
This will finally give us;
![2.5](https://tex.z-dn.net/?f=2.5)
The answer would be 18.
18 divided by 3 would equal 6
20-18 would equal 2
X is equall to 9. Very simple, just look carefully.
Answer:
19
Step-by-step explanation:
f(x)= -3x-2
f(-7)= -3(-7)-2
= 21 - 2
= 19
hope this helps! :D