When asked to find the sum of, or to evaluate, a series, would you rather it be written in sigma or expanded notation? Is one notation better than the other when the series is very long? Suppose the series is infinite. Explain your answers. When asked to describe a series or the relationship between terms of a series would you rather it be written in sigma or expanded notation?

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

one set of data has more variation than the other. hope this !

the correct answer for this just to make it clear for you guys is 2,3