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The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost