Kelly saves $5 every week. Which expression represents the amount of money, in dollars, Kelly will save in w, weeks?

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

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?