A) How many millimeters are in 0.75 centimeters?

7.5 millimeters

Explanation:

There is 1 centimeter to every 10 millimeters, so you multiply 0.75 times 10 and get 7.5

(hope this helps!)

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the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.