10 points 3) Amy and Daniel are selling cookie dough for a school fundraiser.
Customers can buy packages of white chocolate chip cookie dough and
packages of oatmeal cookie dough. Amy sold 8 packages of white
chocolate chip cookie dough and 7 packages of oatmeal cookie dough
for a total of $154. Daniel sold 1 package of white chocolate chip cookie
dough and 1 package of oatmeal cookie dough for a total of $21. What is
the cost each of one package of white chocolate chip cookie dough and
one package of oatmeal cookie dough?