Which expression can be used to model the phrase "the sum of three and a number"?

3+ x

x-3
3- x
x.3

3 + X

Step-by-step explanation:

because the word sum is only used in addition.

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}