Plz hurry 50 points!

solve n -> which number?

this is an inequality problem.

n - 4 -> 13

<-14-15-16-17-18-19-20-21-22-> ; # number line

9

11

17

18

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?