1. use elimination to solve for x and y: 9x−4y=11 x+4y=19 select one: a. (7, 3) b. (4, 3) c. (-1,5) d. (3, 4) 2. solve for x and y: x−3y=−8 3x+2y=31 select one: a. (-11,-1) b. (11,-1) c. (5, 8) d. (7, 5)

in the first equation the answer is d

and in the second equation the answer is also d

i hope this ! : )

i have no answer for this maybe o 7 units

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.