The density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in
scientific notation?
A
1.429 x 10
B 1.429 x 102
C 1.429 x 103
D 1.429 x 102

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary