Answer:

Step-by-step explanation:
An expression means that we don't know enough to create an equation. So, this means we will mostly be using variables.
John runs r amount every day. We need to create an expression for if he runs r amount for 4 days.

r = how much he runs per day
4 = how many days he runs
z = how much he runs this week
This is your expression!
Answer:
i have this same question. im sorry but i don't get it either. sorry..
Step-by-step explanation:
WXY is a acute angle
YXZ is a acute angle as well
Answer: negative, positive, zero, and undefined.
Step-by-step explanation: as x increases. The slope of a line can also be interpreted as the “average rate of change”.
Answer:
0.64
Step-by-step explanation:
7/11=0.63
0.63~~0.64