Astore is having a 30% off sale. if an item is originally $60, how much it cost at 30% off? question 3 options: $42 $30 $25 $18

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

i think it might be a but you might want a second opinion