Let w = 4. enter > , < , or = to compare the expressions. 3w² + 1 10w + 8

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

The value of cos 30° is the same as which of the following?