20 POINTS AND BRAINLIEST, THANK YOU!!

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?

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Math it's appreciated. (picture provided)