what is the sum of the first 12 terms in an AP whose first term is 15 and the common difference is 13.​

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

Which geometric principle is used to justify the construction below?

In a newspaper, it was reported that yearly robberies in springfield were up 25% to 265 in 2013 from 2012. how many robberies were there in springfield in 2012?