on a bike trip, you traveled 21 miles on
the second day. on the 3rd day, you traveled 3
second day.
e trip, you traveled 21 miles on the first day, and n miles on
y. on the 3rd day, you traveled 5 miles less than on the rest
a. write an expression for the number of miles traveled in three day
b. simplify the expression. explain each step.
c. find the number of miles traveled in three days when you traveled
19 miles on the second.

How do i do this? i don’t understand

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

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