What is the following sum? 4√5+2√5 a. 6√10 b. 8√10 c. 6√5 d. 8√5

For this case we have the following expression:

We can rewrite the expression by taking a common factor.

We have then:

From here, add the expression within the parenthesis we have:

The equivalent expression for is given by:

Option C

11 15 15/x

Jonah spent the cost of a movie ticket and split the cost of popcorn, so this needs to be represented by a " + ". Jonah just buy one piece tickets, so 11 is tickets price. We know Jonah's costs represented by the expression 11+15/x, "x" on behalf of the number of he and his friends, so 15 is the price of popcprn. 15/x means one person's money for the poopcorn, including Jonah.