How do you know if you're friends are real

you don't, its the same with birds...how do you know they're real? how do you know you're real? you don't...anyway

Step-by-step explanation:

aM gObLiN gImMiE yE pOiNtS!                 ( thanks )

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)