To solve the equation 12x + 12 = 1212, Martina first subtracted 12 from both sides of the equation. Theo, on the other hand, first factored 12 from both of the terms on the left side of the equation. If Martina and Theo both continue with their solutions, using the least number of steps possible, which of these is a valid argument?

What is the inverse of the function f(x)=4x+8

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.