Janie has $3. She earns $1.20 for every chore she does and can do fractions of chores. She wants to earn enough money to buy a cd for $13.50. Write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd

$1.20c + $3 ≥ $13.50     or     $1.20c ≥ $10.50

Step-by-step explanation:

So Janie has $3, and earns $1.20 for each chore. The number of chores she does is c, and she needs $13.50 for the cd. The amount of money she has after doing c number of chores is $1.20c + $3. In order for her to have enough money to buy the cd, the amount of money she has after doing c chores must be greater than or equal to $13.50. This can be written as the inequality:

$1.20c + $3 ≥ $13.50

This will work, but we can simplify this inequality by subtracting $3 from both sides of the equation.

$1.20c ≥ $10.50

$1.20c + $3 ≥ $13.50     or     $1.20c ≥ $10.50

I hope this helps. :)

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is