I the image below is a question. I need help with it asap!

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?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20