Model the total number of hours that patricia and sun worked together draw the result below then write an expression for the drawing

Use the multiplier method to incrases £258 by 43%

With number 11 ( show how you got the answer)

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth