The max of Lauren's age --> the minimum of the others' ages, 1, 2 & 3
4*avg = 4*9 = 36
36 - (1+2+3) = 30
Lauren is 30 yrs of age, or younger.
Answer:
it`s acute because the angle is less than 90 degrees
No because 32+(-17) = 15
Hope this helps
