you paid $76.70 for a meal in a restaurant. If the original bill was $65, what percent tip did you leave for your server? Please Explain!

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Find solution of the linear equation y = 2/3x + 1/3