Which of the following is most likely the next step in the series?
10a, 21b, 32c, 43d, 54e, 65f

a. 7fg
b. 765
c. 76g
d. 76g
e. 66g
f. 66g

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet