Answer:
A
Step-by-step explanation:
Answer:
3 pounds
Step-by-step explanation:
If you add $3.25 three times, you get $9.75.
Answer:
30 hrs
Step-by-step explanation:
In 1 hour, J completes 1/55 of job
In that time, D completes 1/66 of job
J + D together complete 1/55 + 1/66 of the job in 1 hour
1/55 + 1/66 = 1/30
Together, it takes them 30 hours to build the wall.