Can someone plz check to see if im correct or wrong and help me fix my answers?
for #1 i got x=15
#2 x=21
#3 x=20.83 repeating
#4 x=2.5
#5 x=10.66 repeating
#6 x=36
#7 x=14
#8 x=31.25

Step-by-step explanation:

1. long side : short side = 30 : 25 = 6 : 5 = 18 : 15

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2. long square edge : shorter square edge = 28 : 24 = 7 : 6 = 21 : 18

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3. long edge : short edge = 36 : 30 = 6 : 5 = 30 : 25

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4. short parallel : slant edge = 20 : 12 = 5 : 3

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5. long : short = 16 : 12 = 4 : 3 = 8 : 6

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6. kite short edge : long edge = 20 : 30 = 2 : 3 = 24 : 36

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7. short : long = 4 : 7 = 8 : 14

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8. end : square edge = 20 : 35 = 4 : 7 = 16 : 28

rectangle: 9 1/8 x 4 1/9 = 37 37/72in

parallelogram: b times h= 10.3 x 6.2 = 63.86

trapezoid: a+b/2 times h= 42.5

volume of prism: l times w times h= 36