How do I find the ninth term of a sequence.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points