Alison is wrong because you don't know what 0.146 is of. The other two are in agreement because 292/2000 is 14.6 percent.
She makes 20 observations in all, because there are 5 groups with 4 students in each group. 5x4=20
Let Jeremy's age be x
if Jeremy's grandfather is four times as old as he is,grandfather's age is 4x
if the sum of their ages is 90, we have
x%2B4x=90
5x=90
x=90%2F5
x=18->Jeremy's age
Jeremy's grandfather will be 4x=4%2A18=72
answer:
D. 72
The length of the third side can be expressed as an inequality...
0 < 3rd side < 39, depending on the angle
