Aswimming pool is drained at the end of each summer. fifteen gallons of water are removed per minute. how much does the amount of water in the pool change in one hour? (there are 60 minutes in one hour.)

Write two subtraction equations that are equivalent to 5 + 12 = 17.

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

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