Ahigh school chorus has $1000 in its school account at the beginning of the year. they are putting on a fall concert to raise money for a trip later in the year. at the concert last year they sold tickets for $10 each. if they sell tickets at the same price the total amount in the chorus account can be represented by the linear function t = 10x + 1000. if they increase the ticket price to $15, how many tickets will they have to sell to have a total of $4000 in the account?

a) 100 tickets

b) 150 tickets

c) 200 tickets

d) 250 tickets

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.