Answer:
420 hg = __4200000___ cg
Step-by-step explanation:
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Answer:
24 students.
Step-by-step explanation:
25% is 1/4 of 100.
6*4= The number of students.
The rate a computer works is 1/time. Working together, you add the rates.
Let new computer be x, old computer be y.
x = y - 7

Rounded to nearest tenth gives:
x = 23 hours