How would I write algebraically "twice a number is at least 15"

Which is a pertect square? 72 81 90 99

Organic apples are on special for $1.80 per pound. Does total cost vary inversely or directly with the number of pounds purchased? Find the cost of 4.2 pounds of apples.

What is the function rule represented by the following mapping diagram? y = - 5x + 1 y = x + 1 y = - 3x - 1 y = - 4x

Ella picked the polygon with with the greatest perimeter which of the following polygons did she pick. a triangle with 8 cm on each side, a square with the 5 for each four sides

Gcf of 80, 16 and 96

How do you solve k in V = 3k/t

Whats 100 times 1,002 times 54

Kofi has 4 meters of fabric that he wants to cut into 5 equal-sized pieces. What is true about the length of each piece of the fabric?

3 (2k-2) = - 2 (4K-11) what the answer to this problem?

How do you Simplify 6 (-3 + 2 - 5x)