Find the total amount given the original price and tax or tip rate. Round to the nearest hundredth if necessary. Original price: $156.67

Tax or tip rate: 6%

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

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?

Just tell me how to set up the equation.