What is the domain of the function represented by the list of ordered pairs : {(0,2), (-3,4),(2,8),(-2,6)}?

A. {0,2,4,6}
B. {-3,-2,0,8}
C. {-3,-2,0,2}
D. {2,4,6,8}

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?