G + m = 32
g = 3m
3m + m = 32
4m = 32
m = 32/4
m = 8 <=== Mikhail's age
g = 3m
g = 3(8)
g = 24 <== Gabrielle's age
Answer C
to calculate mean absolute deviation, we need to use the formula = (∑|x-mean|)/n
where x is each term given in data set
n is number of terms = 7
mean = sum of terms / n = (112+134+150+98+120+68+116)/7 = 114
now find (∑|x-mean|) = 138
MAD = (∑|x-mean|) / n = 138 /7 = 19.714 = 20
Answer:
4g plus h
Step-by-step explanation:
