Which expression has a positive value? -4+(-) / by (-3) 8 [ 10 / by() ] 3(-64 / by 8) + 25 -2(-) / by 10

3rd expression has a positive value.

Step-by-step explanation:

(1) -4 + (-5)

= -4 + (-5) × 2

= -4 -10

= -10

(2) 8

= = -20

(3) 3

= 3(-8) + 25

= -24 + 25

= 1 [positive value]

(4)

= -3

3rd expression has a positive value.

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.