55, 87, 49, 88, 33, 30, 51 which one is the lower quartile the median and upper quartile

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.