Which statement about this system of equations are true check all that apply pls h

The x-variable will be eliminated when adding the system of equations since -2x + 2x = 0

The sum of the system of equations is 4y = -12, since 11y + -7y is -4 and -13 + 1 = -12

y = -3, since when you solve for y in 4y = -12 you get -3 (divide both sides by -4)

The first statement is true because 2x + -2x = 0

3rd statement is also true.

Statement 5 is  also true.

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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