What is 302.135 rounded to the nearest tenth

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0