Dard 7.40) - supporting
the depth, in inches, of an object as it sinks
in the river is found by the equation d 0.5t,
where t is measured in seconds, which best
describes the constant of proportionality?
@ 0.5 second per inch
. 0.5 inch per second
©2 inches per second
1 inch per 0.5 second

Simonne used the following steps to simplify the given expression. 12-3(-2x+4) step 1: 12+(-)+(-3)(4) step 2: 12+6x+(-12) step 3: 12+(-12)+6x step 4: 0+6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? •identity property of addition •inverse property of addition •associative property of addition •commutative property of addition