Describe a real life multiplication situation for which an estimate makes sense

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

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