Ann is preparing for the valentine's day dance. she is cutting out 476 hearts a day. if she cuts out hearts for 18 days, how many hearts will she cut in all

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re