Which of these is an example of a literal equation? A. ax - by = k
B. 12 = 9 + 3x
C. 6 + 30 = 62
D. 3x - 4y

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.