A rectangular prism is completely packed with 200 cubes of edge length fraction 1 over 5 inch, without any gap or overlap. Which of these best describes the volume of this rectangular prism? 1 unit cube and 15 smaller cubes of volume fraction 1 over 125 cubic inch each
1 unit cube and 75 smaller cubes of volume fraction 1 over 125 cubic inch each
7 unit cubes and 25 smaller cubes of volume fraction 1 over 125 cubic inch each
7 unit cubes and 125 smaller cubes of volume fraction 1 over 125 cubic inch each

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The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so