Answer: B
Step-by-step explanation:
First, find the sum of the bottles, which is 6,235,168,989 which is not an estimate.
Rounding it to the nearest billion, the answer is 6,000,000,000 or B)
Rick is 27 years old. Pretend D is David and R is Rick
D+R=81
D=2R
2R+R=81 ---> 3R=81 ---> 81/3=R R=27 3(27)=81 TRY IT!
Twenty two three's go into 70.
2 + 7 + 2 + 7 + 2 + 7 + 2 + 7 + 2 + 7 = 45
7 = 5 + 2
10 weeks
they have been saving their money for 10 weeks
