Tyran takes 3/4 hour to paint a wall. his brother takes 1/3 of the time he takes. how long will his brother take to paint 5 similar walls?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Can someone me with these two circle theorem questions asap?

At 6 1/2 cents per pound of string beans how much does 7 pounds cost