30 choices for first seat
29 for 2nd
28 for 3rd
27 for 4th
answer is 30*29*28*27=657720 ways
Answer:
30 miles per minute
Step-by-step explanation:
The ratios 30/1 is equivalent to 15/0.5.
Answer is <span>7x^2-3x+7
hope this helps</span>
Answer:
a. 5i + 13j
b. 8i
c. 10i + 6j
Step-by-step explanation:
a. 2i + 6j + 3i + 7j = 5i + 13j
b. 3i + 7j + 5i - 7j = 8i
c. 2i + 6j + 3i + 7j + 5i - 7j = 10i + 6j
