Write an equation for the nth term of the arithmetic sequence −7, −2, 3, 8, Then find a50.

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles