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5

Step-by-step explanation:

IQR is Q3 - Q1

The question is asking for Checkers so disregared the Chess. On the box we see 3 dots. The only in the middle is the median. The one to the right of the median is Q3, and the other one (to the left of the dot) is Q1. The, Q3 = 15 and Q1 = 10. So, 15-10 = 5. Therefore, the IQR of Checkers is 5.!!

2.56 is the width of the garden

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4