You decided to give your friend marbles for his birthday. since you know he like red marbles better than brown ones, the number of red marbles in the bag is 4 fewer than 5 times the number of brown marbles. the bag contains 74 marbles. which system of equations can be used to determine r, the number of red marbles and b, the number of brown marbles? r + 5b = 4 r + b = 74 r + 5b = 74 r - b = 4 4 - 5b = r 5b + r = 74 5b - 4 = r r + b = 74

Triangle inequality theorem state if each set of three numbers can be the lengths of the sides of a triangle. 1. 9, 8, 22. 2. 5,10,12. 3. 7,10,22. 4. 4,11,12. 5. 11,9,10. 6. 10,4,19. 7. 3,12,10. 8. 4,3,2. 9. 6,5,13. 10. 7,12,20. me .

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?