Whats the area of a triangle with a base length of 3 units and a height of 4 units

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42