1. identify the properfy used to find the equivalent expression.
[4+(-2)] +1 = 4+[(-2) + 1]
(9-3)-6 = 5.(9-3)
(a x 3) x b = b xa x 3)
x+y+z) = (x + y) +2

21

step-by-step explanation:

11279

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo