Write an expression using letters and/or numbers for each problem below. 1.
A number y increased by 8, and then the sum is tripled
2. The total of d and e is split into 4 equal parts

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

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.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76