Factor completely 9x2 − 25. a. (3x + 5)(3x − 5) b. (3x − 5)(3x − 5) c. (9x + 5)(x − 5) d. (9x − 5)(x + 5)

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

20 if (08.02 mc) a of is : y = 6x − 4 y = 5x − 3 a: in ,of .y-on to . (6 ) b: is to of ? (4 )

The sequence [tex]a_{n}[/tex] = 5n + 3 is the same as the sequence [tex]a_{1} = 8, a_{n} = a_{n-1} +5[/tex]