PLEASE SOLVE ASAP! This is a 2-part question so take your time but try to answer as soon as you can.

General admission to the fair is $8.00, and rides (r) cost $3.00 each.

a) Write an expression to represent the situation:

b) Evaluate the expression to find his total cost if he goes on 6 rides


Please put both of the answers in one.
*WILL MARK BRAINLIEST IF THE ANSWERS ARE CORRECT*

a. she will receive a refund of $278.

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.