Mateo earns $75,000 per year and contributes 8% of his salary to a 401(k) retirement plan. His employer matches 20% of his contribution. If Mateo's salary does not change, how much will the employer contribute to his 401(k) over 2 years?​

f high

explanation:

i would say b. research typically uses a variety of sources

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."