In the question, "15 is 50% of what number?", what does 15 represent?

How to solve a simultaneous equation involved with fractions?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection