A carpenter needs to build stairs that measure 5 ¼ ft tall. The carpenter has a total of 42 ft. of material to build each of the stairs. If the carpenter uses all of the 42 ft. of material, how many stairs could be built that are 5 ¼ ft. tall?

the answer is d

step-by-step explanation:

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

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.