Santa has a total of 1,250 toys in one sack. If 750 of the toys are trucks and the rest are dolls, what is the ratio of trucks to dolls?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Write the percent as a fraction or mixed number in simplest form. 0.8%

If a + b = 28 and a - b = 10, then b =?