CAN SOMEBODY HELP ME PLEAS The edge of Robbie’s favorite pizza pie from Pizza Hut is 34.1 inches. How much cheese did the store use to cover Robbie’s favorite pizza pie? (Use 3.14 for pi)

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Which of the following contains a variable?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)