Sandra’s lunch came to $12.84 plus 15% tax. what was the total cost of her lunch?

The total would be $14.77

because we will do 0.15x12.84 which is 14.766 but since this is money we round to the nearest hundredth , and that is $14.77

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints

table 3 represents a direct variation function. : )