Emma went to the movie theater for her birthday. a mix of adults and children attended, making a total of 19 people. each adult ticket was $9 and each child's ticket was $5.50. is the total cost for the party was $150, then how many adults and how many children attended

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.