Does anyone have a brief explanation on how to solve proportions?

1) cross-multiplication: -> xb = ay

2) common denominator: x/y = a/b -> xb/yb = ya/yb

Cross multiplication is the easiest.

step-by-step explanation:

well if you round, things become much more simple. round 5.95 to 6, 4.25 to 4, and 1.05 to 1. now, add 6+4+1 and that would equal 11. so the items together would equal to about $11.

correct choice is a

step-by-step explanation:

the equation of the line passing through the points and is

thus, the equation of the line that passes through the points (0, -6) and (-3, 0) is