Answer:
0
Step-by-step explanation:
Answer:
23,49,812
Step-by-step explanation:
When Serena is 10, her mom is 3*10=30. Her mom is 20 years older than Serena.
If her mom's age divided by half is equal to Serena's, then she will be twice as old as Serena.
20 + 20 = 40
20 * 2 = 40
Serena will be 20, her mom will be 40.
Answer:
I think it's c
Step-by-step explanation:
You multiply the 2 values together to get 1.5*10^12
