The measure of one side of a square is (s + 7) inches long. Which pair of expressions both represents the perimeter of this square? **Remember squares have equal sides**. A. 4(s + 7) AND (s + 7) + (s + 7) + (s + 7)

B. 4s + 7 AND (s + 7) + (s + 7) (s + 7) + (s + 7)

C. 2(s + 7) AND (s + 7) + (s + 7)

D. 2s + 7 AND (s + 7) + (s + 7)

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

Does the point (1, sqrt 7) lie on circle shown.

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?