Write the answers to the following questions in scientific notation. Round coefficients to the nearest tenth.



​Last year a farm produced 6.2\cdot 10^{6}6.2⋅10
6
soybeans and 7.8\cdot 10^{6}7.8⋅10
6
onions.

​a.) What was the total number of vegetables produced by the farm last year?


vegetables.



​b.) How many more onions than soybeans were produced by the farm last year?


more onions.