40-gal tank $170 Aquarium light $30

Filtration system $65

Thermometer $2

18-lb bag of gravel $13

Large rocks $3 per lb

Clown fish $20 each

Damselfish $7 each

Kevin bought 4 bags of gravel to cover the bottom of his fish tank. He has 5 pounds of gravel left over.

How much gravel did Kevin use to cover the bottom of the tank?

Kevin used pounds of gravel.
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Kevin used 67 pounds of gravel.

Step-by-step explanation:

18pounds= 1 bag

4bags=?

18 x 4= 72

4 bags= 72 pounds

He has 5 pounds of gravel left over.

72 - 05= 67

Kevin used 67 pounds of gravel.

*EXTRA~(pounds can also be wrote as the letters lbs)

(so lbs means the same thing as pounds)

(lbs and pounds are both pronounced and said as the word "pounds")~EXTRA*

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .

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step-by-step explanation: