3.last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,500 skateboards and a standard deviation of 55 skateboards.
(b) on what percent of the days last year did the factory produce 20,610 skateboards or more?
(c)on what percent of the days last year did the factory produce 20,445 skateboards or fewer?

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

W-16=-12 solve each one step equation plz