One winter day, the temperature ranged from a high of 20 degree fahrenheit to a low -25 fahrenheit by how many degrees did the temperature change?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Find the solution(s) to x^2-14+49=0

Which rule describes the composition of transformations that maps △abc to △a”b”c