Evaluate the expression shown for x = 12. 5
-x+7
6
-15
-755
6
-3
wo 00
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On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2