During the summer time, kevin tried to finish his math assignment within 4 days. he
finished 54 problems in the first two days, and 90 problems in the 2nd, 3rd and 4th day.
if he finished of the total number of 1/5 problems on the second day, how many
problems are in his assignment?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?

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