According to the rate of electricity change the minimum cost up to 20 unit $8 and cost from 21 to 50 unit is $730. How much does 105 unit cost

Asphere has a diameter of 10 in. what is the volume of the sphere?

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

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