Answer:
f(13)=2x-1, x=7
Step-by-step explanation:
7*2=14, 14-1=13
vise versa
f(13)=2(7)-1
Answer:
175<=12.5x+40
Step-by-step explanation:
She starts with 40 points already so you add in those 40 then since she gets 12.5 points per visit that is your x, so you set that as greater than or equal to 175
Answer:

Step-by-step explanation:

First, multiply both sides by -4. You must also change the inequality sign since you are multiplying both sides by a negative number.


Subtract 1 from both sides.


Answer: d
Step-by-step explanation:
44,4 - (-0,4) = 44,4 + 0,4= 44,8