In choosing what music to play at a charity fund raising event, Davon needs to have an equal number of string quartets from Mendelssohn, Schubert, and Rubinstein. If he is setting up a schedule of the 6 string quartets to be played, and he has 6 Mendelssohn, 15 Schubert, and 10 Rubinstein string quartets from which to choose, how many different schedules are possible? Express your answer in scientific notation rounding to the hundredths place.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Solve 13 + w/7= -18 (w/7 is a fraction)

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet