Which pairs of rational numbers are equivalent? Select all that apply. -0.5 and
2.
0.7 and 1/10
11
and 0.55
20
and -0.02
50
0.15 and 0.15

Equivalent rational numbers by multiplication: If ab is a rational number and m is a non-zero integer then a×mb×m is a rational number equivalent to ab. For example, rational numbers 1215, 2025, −28−35, −48−60 are equivalent to the rational number 45.

Step-by-step explanation:

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gdp is the best phrase!

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