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• What number is equal to twice the sum of 7 and 21?...

# What number is equal to twice the sum of 7 and 21? ​

• Réponse publiée par: batopusong81

56

Step-by-step explanation:

n=(7+21)(2)

n=(28)(2)

n=56

checking

56=(28)(2)

56=56

• Réponse publiée par: janalynmae

7

Step-by-step explanation:

7,14,21,28

21,28

7=28

21=28

• Réponse publiée par: maledabacuetes

simple is when you have crush on her,compund if you love her and destrou her puss.y

9a)45*5 because √225 is 15and 45*5=225 so 5 is the answer
9b)125*5because√625is 25 and 125*5 =625 so 5 is the answer
9c)468*13 because √6084is 78 and 468*13=6084 so 13 is the answer
9d)1372*7 because √9604 is 98 and 1372*7=9604 so 7 is the answer

10a)27/45=60%
n=60%
10b).30*129=36
n=36
10c)200/.40=500
n=500
10d)105/.15=700
n=700
11a)i dont know
11b)8(-1,-2,-3,-4,-6,-8,-12,-24)
11c)2668
11d)2210
11e)35 chickens remain
3500 pesos
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What number is equal to twice the sum of 7 and 21? ​...