Will give brainlest Which answer choice correctly represents an algebraic expression for the
sum of 15 and a number?
OA) 15n
OB) 15 - n
OC) 15 + n
OD) 15/n

Option C (15 + n)

Step-by-step explanation:

The phrase "the sum of" indicates addition.

This means we would write the sum of 15 and a number as 15 + n, where 'n' is the unknown value.

Option C should be the correct answer.

Hope this helps.

The length of the longest metal rod that can be sent is 12 inches.

As given, the only boxes available for shipping are 7-inch cubes. As Jorge needs to ship a thin metal rod to a metalworking shop, he will put the rods diagonally or space diagonally in the box.

The space diagonal of a cube can be found by the formula :

=

Here, x is 7 inches.

So, Diagonal is =

= inches.

Rounding this to nearest whole number we get 12.

So, the length of the longest metal rod that can be sent is 12 inches.