Luke says you can always add and you can always multiply to join groups. Is he correct? Explain why or why not

Evaluate 12x-3y when x=-1/4 and y=3.

Find the volume of the sphere to the nearest cubic foot. Use 3.14 for π. With a radius of 12ft!

A gardener is planting flowers. He plants 30 flowers in each garden bed. He plants 9 garden beds. How many flowers does the gardener plant in all?

How do you write 72.5% as a fraction in simplest form

Ben has 1/2 of a loaf of bread. If he and his 3 friends share the 1/2 of the whole loaf equally, how much of the whole loaf will each person get?

2y + 5x - z = 4y + 6x solve for y

I'm not quite sure how to do this question: - 2 (35-5y)

The table below lists recommended amounts of food to order for 60 party guests. How much of each food item should Nathan and Amanda order for a graduation party with 90 guests? Use the table to answer.

Use the chart by multiply the binomial by the trinomial. (2y+3) (3y2+4y+5)

Let f (x) = - 6x + 3 and g (x) = 5x + 4. Find and state its domain. - 30x2 - 9x + 12; all real numbers except x = 4 - 18x2 - 39x + 20; all real numbers except x = 1 - 18x2 - 39x + 20; all real numbers - 30x2 - 9x + 12; all real numbers