Plz help me i really need help like really plz help asap asap ASAP PLZ HELP ME

Hey there!

The sum of angles in a triangle ALWAYS adds up to 180 degrees.

So, we can set the expressions equal to eachother, and solve for x:

6x - 5 + x + 8 + 2x - 3 = 180

Add like terms:

9x = 180

Divide both sides by 9:

x = 20

Now, we plug x into the expressions to find their angle values:

m∠J = x + 8

m∠J = 20 + 8

m∠J = 28

m∠K = 6x - 5

m∠K = 6(20) - 5

m∠K = 120 - 5

m∠K = 115

m∠L = 2x - 3

m∠L = 2(20) - 3

m∠L = 40 - 3

m∠L = 37

Have a super awesome day! :)

if you mean

then it's c. 8, -7/3

but if you mean

then it is

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!