Amy and stephanie were playing a number game. amy picked a number and told stephanie that if she added 9 to the number and multiplied the sum by 3, it would equal 12. which equation could stephanie use to find the number, x?
a.
3(x) + 9 = 12

b.
3(x + 9) = 12

c.
3 + (x + 9) = 12

d.
9(x + 3) = 12

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.