Allison was comparing the price of salmon at two stores. At SuperGrocery B, 0.5 pounds of salmon costs $2.77. The table below represents the total cost, in dollars
and cents, y, that it costs for 2 pounds of salmon at SuperGrocery A.
SuperGrocery A
Pounds (2) Total Cost (y)
2
$15.96
2.5
$19.95
4
$31.92
5
$39.90
How much would you save, per pound, if you buy your
salmon at SuperGrocery B, rather than SuperGrocery A?

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.