B. s. is parallel to xy what is the value of x

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

answer

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step-by-step explanation:

b.   e = 7.5h

hope this , lovely!