Find tan and cos if sec=4 and sin< 0

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

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths