If the sixth term of a sequence is 128 and the common ratio is 2, then what is the first term?
1
2
4

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?