Answer:
What is equation?
Step-by-step explanation:
is that x a variable or multiplication symbol?
Step-by-step explanation:
if multiplication the answer is 12 • 10 to the 6th power or 12,000,000 they are the same
Put the value of x to the inequality:

Answer:
In standard form, the answer should be : 2y + x = 6.
Step-by-step explanation:
See attached image.
Answer:
Step-by-step explanation:
Let Waldo's speed = W
Let Ralph's speed = W + 15
A
Waldo's distance = speed * Time
Time = 4 hours.
Speed = w
distance = 4 * w
B
Ralph's speed is W + 15. It's not clear if you need a number. We'll get around to that later.
C
Ralph traveled 4*(W + 15)
D
4w + 70 + 4(W + 15) = d
You really can't get a definite answer to these questions. Even if you knew whether they were heading away from each other or towards each other it wouldn't help.