The TV weather forecaster announces that one location has a 40% chance of rain tomorrow and a 15% chance of sleet. What is the probability that it will rain or sleet in this location? 3/20

11/40

11/20

9/20

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

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¯¯¯¯¯¯¯¯)?

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents