twice the sum of a number and 3, means you need to add the number to 3 first, then multiply by 2.
The correct expression would be 2(n+3)
the answer is option A........
consider expanding into the brackets, helpful?
Answer:
500
Step-by-step explanation:

Let's solve ~




Therefore, Option D is correct ~
Answer:
Step-by-step explanation:
√9 and√16
the two numbers are 3 and 4
this means that √10 is located between 3 and 4 ( √10=3.16)
so √10 is 3.16
( unless there are different options , this is the answer)