Two 6-sided dice are rolled. what is the probability that the sum is odd and the number on one of the dice is a 1?

What is the first step of an indirect proof of a number that is divisible by two

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

What is the value of x when x + 7 = 21?