Classify the polynomial by Degree and number of Terms. 3x^2y^2 + 2xy^3 - x

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

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?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions