NEED HELP ASAP! HOW TO SOLVE THIS PLEASE? The average seat fare for a flight is $450. If the distribution of fares is
approximately normal with a standard deviation of $85. Find:

The probability that a randomly selected seat fare is less than $400

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¯¯¯¯¯¯¯¯)?

The volume of a cube is 8 in to the 3rd power. how long is each side?

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?