Volume of a cube with side length 2.5 millimeters

15.625 mm³

Step-by-step explanation: Since the length, width, and height of a cube are all equal, we can find the volume of a cube by multiplying side x side x side so we can find the volume of a cube using the formula S³.

Notice that we have a side length of 2.5 millimeters so plugging into the formula we have (2.5 mm)³ or 2.5 mm x 2.5 mm x 2.5 mm which is 15.625 mm³.

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

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