Answer:
Sister's age: 4
Brother's age: 12
s> 144 2/3
Step-by-step explanation:
I took the test in k12 and i got it right so yea !
x = 67
y = 23.5
Sum of angles in a triangle is supplementary,
x + 90 + 23 = 180
x + 113 = 180
x = 180 - 113
y = ?
180 - 67 / 2
= 133 / 2
= 66.5
y + 66.5 = 90
y = 90 - 66.5