Find the total cost of producing 5 widgets

Let r = 3. what is the value of r + 58?

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l