IM DOING LINEAR MODELS PLS HELP WHO EVER IS GOOD AT THEM PLS Your friend has $90 when he goes to the fair. He spends $5 to enter the fair and $15 on food. Rides at the fair cost $1.50 per ride. Which function can be used to determine how much money he has left over after x rides? (1 point)
Answer choices:
A. f(x) = 1.5x + 70
B. f(x) = −1.5x + 70
C. f(x) = −1.5x − 70
D. f(x) = −20x + $90

answer: this is not a question

step-by-step explanation: this is a answer

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

step-by-step explanation:

one day the were 5 ducks, and their king told them to multiply their kingdom. so each went their own seperate way and met 4 other ducks on their journey.

when the ducks returned to their kingdom, it was discovered that there were 5 groups of 5 ducks. when the kind counted the number of ducks in total (including the ones he sent out earlier) he counted 25.

therefore 5 times 5 is 25.

the end. : )

the answer to this is 4340

hope this if needed hmu