Answer:
congruent angles are angles that have the same degree so for example a 45° angle and another 45° angle are congruent
supplementary angles are two angles that add up to 180° or in other words a straight line so an angle that is 100° along with an angle that is 80° would be supplementary
Let x be the number of 52 cent stamps that Sally has and let y be the number of 34 cent stamps that she has.
Then,
52x + 34y = 1150 --- (1)
Also, she has six more 34 cent stamps than 52 cent stamps.
Therefore, y = x + 6
(1) becomes
52x + 34(x + 6) = 1150
52x + 34x + 204 = 1150
86x + 204 = 1150
86x = 1150 - 204
86x = 946
x = 11
and y = 11 + 6 = 17
Hence, Sally has eleven 52 cent stamps and seventeen 34 cent stamps.
Would love to help but unsure what you are referring too