What equation represents the profit earned by selling x books?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

]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