Salut ajutatima si pe mine la urmatoarele exercitii

(2012x2011-2011x2010x1x2009)
2,15-3,5+47: 2
va rog mult ajutatima am nevoie !
multumesc mult : )

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

What is the rate for one gallon of gasoline

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?