Answer:
set mary is x years old, and helen is y years old.
first sentence:x=2y
second one:4(y-8)=x+4
bring x=2y in 4(y-8)=x+4
=>4y-32=2y+4
=>2y=36
=>y=18
=>x=36
mary:36
helen:18
Answer:
Step-by-step explanation: I cannot provide an answer due to insufficient evidence.
Liters can probably be the unit to measure the capacity of a hand sanitizer bottle
Answer:I don't really know sorry but I think its the second one
Step-by-step explanation:
