Joshua has more than 250 toy soldiers. when he tries to arrange them in rows of 3, there are 2 left over. when he tries to arrange them in rows of 5, there are 2 left over. when he tries to arrange them in rows of seven, there are 2 left over. what is the least amount of toy soldiers joshua may have?
plz

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?