A package of 3 pairs of insulated costs $15.57. What is the unit price of the pairs of ?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x