Eduardo counted ten seconds between swing lightning and hearing thunder, and he knew that the lighting was about 2 miles away. if he counted four seconds between the next flash of lighting and thunder, about how far away was the lightning?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76