D. (xy2 + 3z14)(x2y4 – 3xy2z14 + 9z28
Answer:
30
Step-by-step explanation:
x + 23 = ?
x = 7
All we need to do is plug in x =7 to the first equation:
7 + 23 = ?
We simplify and get:
30 = ?
Answer:
As traffic volume increases, vehicle speed increases.
Step-by-step explanation:
The answer is D because -10+(-40)+(-90) is the same just swiched
