**Answer:**

56

**Step-by-step explanation:**

The thing to realize is that the total of both angles that have x in them is that they add to 145. That's given.

<LKM + <MKN = 145

2x + 10 + 4x - 3 = 145 Combine like terms

6x + 7 = 145 Subtract 7 from both sides

6x = 138 Divide by 6

x = 138/6

x = 23

That's not the answer.

2x + 10 = <LKM

2*23 + 10 = <LKM

46 + 10 = <LKM

56 = <LKM

**Answer:**

no the relation is not a function because it has -2 for two functions its supposed to be 1 input and 1 output

**Step-by-step explanation:**

**Answer:**

you got it right it is C

**Step-by-step explanation:**

ur welcome