3(-2y-7)+8y what is the answer?

In the figure dhg fhe which statement is true by cpctc

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 circumference of a circle with an area of 50.24 cm²?