“the science club went on a two-day field trip. the first day the members paid $70 for transportation plus $15 per ticket to the planetarium. the second day they paid $90 for transportation plus $12 per ticket to the geology museum. write an expression to represent the total cost in dollars for two days for the n members of the club. an expression that represents the total cost in dollars for two days for the n members of the club is given by .”

Step-by-step explanation:

let x be the total cost in dollars for two days for the n members

Given:

The first day the members paid $70 for transportation plus $15 per ticket to the planetarium.

The second day they paid $90 for transportation plus $12 per ticket to the geology museum.

We need to write an an expression to represent the total cost in dollars for two days for the n members of the club.

Solution:

First day each member pay $70 for transportation and $15 for ticket,

Therefore, cost for n members for the first day.

Similarly for the second day each member pay $90 for transportation and $12 for ticket,

Therefore, .

Now, we write an expression to represent the total cost in dollars for two days for the n members of the club, so cost for n members for two days is equal to sum of the two days expenses for n members.

Therefore, total cost for two days for the n members

a

step-by-step explanation:

answer:

c) the x-coordinate of the center of the circle increases by 3