Ineed an equality for both of these : ) so

Inequalities will be

Step-by-step explanation:

Since we have given that

In First Case :

Number of scores Jenny scored in one part exam = 47

Let the number of scores Jenny scored in second part exam be "P"

And she wants to score in combined exam = atleast 85

So, the system of inequality will be

So, the range of P must be

Similarly,

In the second case,

Least amount Tom wants to save for a trip = $2000

Amount he saved so far = $375

Let the amount he needs to save for going for a trip be "M".

So, System of inequality will be

So, Value of M will be

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.