It is substitution. Because you are substituting 3=y into x+5=3
Answer:
The sum of a number and 7 multiplied by 2 is increased by 10
Step-by-step explanation:
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
Answer:
Population size:10
Mean (μ): 231.4
Mean Absolute Deviation (MAD): 4.36
Hope this help!