Which of the following functions has an inverse that is not a function? f(T) = 32 -
f(x) = (- 1)3 + 2
f(3) = 24
f(x) = x(x - 1)
PLEASE HELP I NEED THIS TO PASS

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

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?

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out