1. Centi
2. M
3. 6300
4. mg
5. 0.789
6. 98.7
7. L
8. 4 miles
9. A
10. 90 oz
11. 7650 lb
12. C
13. C
14. B
15. D
16. C
17. B
18. A
19. D
Answer:
He will spend 42 dollars
Step-by-step explanation:
7 times $6
= $42
(If that's what you're asking)
ANSWER

or

We have

Since we cannot factor easily, we complete the square.
Adding 2 to both sides give,

Dividing through by 3 gives

Adding

to both sides gives

The expression on the Left Hand side is a perfect square.




Splitting the plus or minus sign gives

or