Mike Hawk has two skateboards. He trades one skateboard for two more skateboards.
How many skateboards does he have left?
A) 1
B) 2
C) 3
D) 4

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000