Evan wants to leave an 18% tip for the serve at a resturant. which expression does not show how to calculate the tip if b is the total bill

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Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Agroup of randomly selected members of the foodies food club were asked to pick their favorite type of food. the bar graph below shows the results of the survey. there are 244 members in the foodies.

How are algebraic expressions evaluated using substitution?