1) a speed walker covered 4 1/2 mi in 3/4 hour. how far will he walk with the same pace in 2 hours? 3 hours? 3.5 hours? 2) two combine harvesters are able to harvest the crop from 320 acres in a certain amount of time. working together for the same time, how many acres can be harvested by 7 combine-harvesters? 12? explain your work, !

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

Ineed in figuring out this problem.

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2