1/4+1/3=. Simplest form

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

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.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16