Triangular numbers can be represented with equilateral triangles formed by dots. the first five triangular numbers are 1,3,6,10,and 15. is there a direct variation between a triangular number and it's position in the sequence? explain your reasoning.

Sara bought a pair of pants that were on sale for 30 percent off of the original price. if the original price of the pants was $29, what was the sales price of the pants?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl