Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 5,20,80...

If the measure of xyz is 81 what is the measure of yz

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?