Katie collects stamps. she has stamps from canada, the u. s.a, and the rest of the world in a ratio of 1: 1.2: 1.5. she has 135 stamps from the rest of the world.

a) how many stamps are from canada?
b) how many stamps are from the u. s.a?
c) what is the total number of stamps in katie's collection?

( explain and show how you got those answers.)

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d.q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12 9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

Identify one charcteristic of exponential growth

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1