X2+ 16 = 65
Ayud es una tarea

x=7 or -7

Step-by-step explanation:

x2 + 16 = 65

    - 16    -16

x2=49

If this is x squared, then you get the square root.

x=7 or -7

Hope this helps :)

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2