Can anyone tell me what this is, what unit it is, and how to solve and . problem is in the picture.

10

p + Q= square root of p square + Q Square

Step-by-step explanation:

p(+)q=sqr(p^2+q^2)

8(+)6=sqr(8^2+6^2)

The square root of(64+36)

The square root of(100)

=10

Hope this helped! pls mark brainliest

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50