The answer would be E. 2a.

scalar multiplication, now, add them up
Answer:
45 cups
Step-by-step explanation:
5:3
Multiply by 9 (3*9=27)
45:27
You would need 45 cups of flour to match the equivalent ratio of 5:3.
(45:27)
26 ft because 42 divided by 6 is 7 which means the length is 7 and the height is 6. To find the perimeter you have to add each side of the rectangle. 7+7+6+6=26
First term: a: 5/6
2nd term: 3/2 = 9/6
3rd term: 13/6
4th term: 17/6
a(n+1)=a(n) + 4/6, or a(n+1) = a(n) + 2/3, with a(1) = 5/6