I don't get it please help me thru it.

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?

Vertical angles must check all that apply