Help, please? :P

:P :P :P

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)