Multiply each number by 3.
2 (x 3) is 6. 6 x 3 is 18, 18 x 3 is 54, 54 x 3 is 162.
Hope this helps!
1. Since it's m - 7 you would have 7 to both sides so you would in fact have m < 13. If you double check your answer, you see that if m is say 12 (because 12 is obviously less than 13), 12 - 7 < 6
2. Again, use the same process on this problem as the first one. Add 8 to each sides because it's you're subtracting 8 from n. So you end up with n > 13. Check your answer. Say n is 14. 14 - 8 > 5
3. This one is different because you are adding 5 to p. So in order to get p by itself, you need to subtract 5 from both sides. p < 5. Say p is 4, 4 + 5 < 10.
When working with problems like these, you need to isolate the variable on one side and get it by itself.
-6x-x^2-8 = -(x+2) x (x+4)
(This is if you are factoring the expression)
Answer:
6 1/2 hours
Step-by-step explanation:
not sure
