Based on the service records from american express, it generally takes ten minutes to answer a customer’s question on his/her financial charges, with the standard deviation of three minutes. in other words, the time to answer customers’ questions on financial charges follows a normal distribution of n(10,3). given above information, how many questions can be answered with in four minutes to sixteen minutes?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

step-by-step explanation:

this is not a question

i believe the answer is the polygon, heptagon.

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .