Zina buys p pounds of bananas for 30 cents per pound. She pays the clerk with a twenty dollar bill. The clerk subtracts the total cost of the bananas from the twenty dollar bill to determine the amount of change to give Zina. Which expression represents the amount of change Zina should receive?

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Which one ? is the answer and how to find this answer