1)
answer
A. PQR = PSQ = QSR
2)
answer
B. MNO = MOP = PNO
Answer:
Mary's sister is 12 years old.
Step-by-step explanation:
If Mary is half of her sister's age, her sister is 2 times her age.
Represent M as Mary's age...
M+2m=18
3m=18
3m/3=18/3
m=6
But because Mary is a half of her sister's age...
6*2=12
Answer:
4 teachers for 28 students
Step-by-step explanation:
28/7 = 4