Simonne used the following steps to simplify the given expression.
12 - 3(-2x + 4)
step 1: 12 + (–3)·(–2x) + (–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?

Find x to the nearest hundredth place

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.