Answer:
Number 4
Step-by-step explanation:
Larry ran 2.52 killometers. Since a meter is 0.001 killometers, you have to do 0.001 x 220 which is 0.22 then do 2.3 + 0.22 and get 2.52.
Step-by-step explanation:

-14x²-1≠0
x²≠ -1/14
Option C
98 is a composite number. 98 = 1 x 98, 2<span> x </span>49<span>, or </span>7<span> x </span>14<span>. Factors of 98: 1, </span>2<span>, </span>7<span>, </span>14<span>, </span>49<span>, 98. Prime factorization: 98 = </span>2<span> x </span>7<span> x </span>7<span>, which can also be written 98 = </span>2<span> x 7².</span>