The first one would be (2x)(7) and plus the other 75 it would be 738 with that in total of it c 5 3-15
Answer:

Step-by-step explanation
Three-fifths of a number means
and 21 less than that number means
.
Answer:
D
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Answer: 480300
Step-by-step explanation:
800 * 600 + 200 + 100
480000 + 200 + 100
480000 + 300
480300