X + y = 2
2x - y = 7
Which of the following ordered pairs (x, y) satisfies the system of equations above?
A. (-1,3)
B. (5,-3)
C. (3, 1)
D. (3,-1)

In the 30-60-90 triangle below side s has a length of and side r has a length

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625