Expand x (3x - 1)

I Don't understand the last part

Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign? A square shaped traffic sign is shown with length of one side labeled as 8x minus 2.

I am making oatmeal cookies and one batch calls for 2 3/4 cups of flour. If I am going to make 4 batches, how many cups of flour will I need?

Unicom Farms Joy has 15 Unicorns on her farm. She gains 2 unicorns each month. John is just starting his unicorn farm and has no unicorns yet. Each month however he has a contract to buy 5 unicorns.

The diameter of a circle is 3 kilometers. What is the area?

Problem Luke can paint 91portraits in 7 weeks. How many portraits can Luke paint in 4 weeks?

If john is (j) five inches shorter than anna (a) which expression represents johns height A - 5-a B - a-5 C - 5a D - a+5

Circle 1 has center (?4,?7) and a radius of 12 cm. Circle 2 has center (3, 4) and a radius of 15 cm. What transformations can be applied to Circle 1 to prove that the circles are similar? Enter your answers in the boxes.

Which of the following expressions represents a function? { (1, 2), (4, - 2), (8, 3), (9, - 3) } y2 = 16 - x2 2x2 + y2 = 5 x = 7

Add 34 and 6 and then multiply by 3

Whats the mean of 12 2 8 6 57