Mr. Jeon is driving to the city to watch a play. The play is 18 26
kilometers
100
19
away. When he stops to pick up a friend, Mr. Jeon has gone 6 kilometers.
100
How much farther is there to go? Simplify the answer if possible.
11
A 12 km
100
7
B 12 km
100
9
C 12 km
100
D
3
12
100
km

Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean