Gieo đồng thời 2 con xúc xắc. Tính xác suất để: a) tổng số chấm xuất hiện trên 2 con là 7.
b) tổng số chấm xuất hiện trên 2 con hơn kém nhau 2.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality