Answer: A. contains a number and a unit
Step-by-step explanation:
Quantitative observations measure the quantity, or the amount, of a certain thing. Therefore they must always use a number value to measure the amounts, and a unit to signify what the amount is for.
Answer:
C,B
Hey there!
5 centimeters (aka cm) is equivalent to 50 millimeters (aka mm)
5cm = 50mm
Hope this helps you!
God bless ❤️
xXxGolferGirlxXx