The answer is B. 17.
All this lines are there to confuse you. All you have to do is solve for x on both lines.
3x-24=x-10 subtract x from both sides
2x-24=10 add 24 to both sides
2x=34 divide both sides by 2
X=17
Hope this helps.
C
Hint: Sara played about 4 rounds
Answer:
(X,Y)(18,12)
Step-by-step explanation:
x + y = 30
2x + 4y = 84
___________
2x+2y=60
2x+4y=84
_________
-2y=-24/-2y
y=12
2x+4(12)=84
2x+48=84
2x=84-48
2x/2=36/2
X=18
16
square root of 16 is 4
4x4=16
