Steve is a year older than three times the age of their sibling Arin. In four years, they will be two years older than twice Arin age. What are their current ages?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50