If you rolled a 2, 3, 7, and 8, how would you arrange the numbers to reach a Target Number of 2400?

What is the binomial expansion of (2x-3)^5

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Using elimination, what is -4x+2y=-12 4x+8y=-24