What property is being illustrated in the statement: (12 +23) +37= (37 +23) + 12 ? A. closure

B. commutative

C. associative

D. distributive

The symbol written on top of the number to show that it is the repetend?
a. slash

b. hyphen

c. dash

d. vinculum

Find the sum of (+8) + (-12) + (+3) +(-4).
a. +27

b. -27

c. +5

d.-5

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

Could someone . i have tried to solve myself but my calculation is off

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec