math_celebrity Administrator Staff member Oct 29, 2019 #1 half the sum of the numbers s, t, and u The sum of s, t, and u means we add all 3: s + t + u Half the sum means we divide the sum by 2: (s + t + u)/2

half the sum of the numbers s, t, and u The sum of s, t, and u means we add all 3: s + t + u Half the sum means we divide the sum by 2: (s + t + u)/2