Sung-Hi is filling a sandbox with sand at the rate shown in the table below. Which statement must be true regarding the linear function that represents this situation? Amount of Sand in the Sandbox
Number of Minutes Since Sung-Hi Started
0
1
2
3
4
Amount of Sand in the Sandbox (pounds)
200
220
240
260
280
The initial value must be 0 pounds.
The initial value must be 20 pounds.
The rate of change must be 0 pounds per minute.
The rate of change must be 20 pounds per minute.

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.