When p = 12, t = 2, and s = 1/6, r = 18. if r varies directly with p and inversely with the product of s and t, what is the constant of variation?
a: 1/8
b: 1/2
c: 4 1/2
d: 18

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

Find the area of the regular hexagon if a side is 20 cm.

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?