W) (a^2 – 4) (9 - b^2) + 24ab​

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 is the rate of change of a line that passes through (2,-5) and (6,-2)?

10% of 1,900,000. show me how you got the answer