I think that the interval that is always increasing is interval number 1.
1/3(12x-24)=16
3/1[1/3(12x-24)=16]
12x-24=48
+24 +24
12x=72
12x/12=72/12
X=6
4x5-2x3-3x2-7 descending means basically the same thing as greatest to least
Caixa de Marcos = m
caixa de Drew = m-8
Drew levantou 14 caixas
Marcos levantou 9 caixas
D = 14(m-8)
The mean is found by adding the time it takes Greg each day and then diving by the number of days: 27+25+32=84.
84/3=28 min
it takes Greg 32 min on the third day
