A bird is flying above the ocean and a shark is swimming below the surface. The bird's vertical elevation is 15 feet and the shark's is -5.7. The equation 15 + d = -5.7 represents this situation. What value of d will make the equation true?

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Can some one explain this i got sent this. is this a threat i’m scared