Answer:
D.) c is multiplied by 4
Step-by-step explanation:

If a is doubled, it becomes 2a. If b is doubled, it becomes 2b. Now we replace a with 2a and b with 2b and simplify.




Answer: D.) c is multiplied by 4
Expressions equivalent to 3(1+x)+7 is x+10
Answer:
It is A
Step-by-step explanation:
5 and 6 are the only numbers greater than 4 and they are both heads and tails.