Iwant to know how to sole a math problem which is 8-3/2/3

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?

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

Describe how you can act financially responsible.