Determine whether f is a function from the set of all bit strings to the set of integers if a) f(s) is the position of a 0 bit in s. b) f(s) is the number of 1 bits in s c) f(s) is the smallest integer i such that the ith bit of s is 1 and f(s) = 0 when s is the empty string, the string with no bits

Mia spent 30 minutes answering the math questions on the exam. this was 1/4 of the total amount of time allotted for this section of the exam. to determine the total amount of time allotted for this section of the exam, mia set up and solved the equation as shown below. which best describes the error that mia made when solving the equation?