Can you show me how to reduce 99/143?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,