Which answer is the same as moving the decimal in 12.9 two places to the right?

a.
dividing 12.9 by 103

b.
dividing 12.9 by 102

c.
multiplying 12.9 by 100

d.
multiplying 12.9 by 1,000

Solve: 3x+y=6 4x-2y=18 show all work !

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

In the figure below, m∠r is 60°, and m∠t is 120°. what is m∠q? a. 60° b. 30° c. 120° d. 54