What is the exact value of 5.3 million × 2.7 thousand

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%