Seana and Mikayla sold tickets to the school play. Seana sold 3 adult tickets and 2 student tickets for $84. Mikayla sold 2 adult tickets and
5 student tickets for $100. How much did a student ticket cost?
A. $12
B. $20
C. $36
D. $44

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

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?