Larry is putting a row of rocks around his rectangular pool. Which descriptive model will tell him how many rocks he needs? [2(pool length) + 2(pool width)] times the width of the rocks

(pool length times pool width) times the width of the rocks

(pool length times pool width) divided by the width of the rocks

[2(pool length) + 2(pool width)] divided by the width of the rocks

P = [2( l)+2(w)] / width of the rock

Step-by-step explanation:

row of rocks around his rectangular pool, this tells us we are finding the perimeter

The perimeter of a rectangle is given by

P = 2( l+w)

P = 2( l)+2(w)

But we know that the length  takes into account the width of the rock so divide each side by the width of the rock

P = [2( l)+2(w)] / width of the rock

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

a

step-by-step explanation: