Write the first 6 terms of the sequence.

an= -n2+6

Please show work

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 larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?