PLEASE HELP ME I WILL MARK BRANLIEST

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 of the following is correct interpretation of the expression -4+13

You can find the constant of proportionality by finding the ratio of