Carlos spent about 18.75 minutes practicing his multiplication facts
Answer:
.018 Kg/cm^3
Step-by-step explanation:

Density (P) is equal to the mass (9.9g) divided by volume (.55cm^3)

= 18g/cm^3
=.018kg/cm^3
Answer:
A variable is a letter or symbol, such as a, b, or x, that represents a number. An algebraic expression is a combination of one or more variables; it may include numbers and operation signs. For example, 2 d 5 is an algebraic expression that could represent two times the figure number plus five.
Step-by-step explanation:
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The Volume is 4.5ft.
Hope this helps!!
Answer: Israel Navied Bernardo