checking answers 4 algerbra
posted by Nashea .
1. use a commutative law to find an equivlant expression f+sr? sr+f?
2. determine which real number corresponds to the situation. The record high tempature for a date is 97.8 above zero. The cooresponding number for this sentence is 97.8?
3.Translate to an algebric expression. The sum of c and n? c+n?
4. divide if possible 64/8=72?
5. divide if possible 90/10=9?
6. multiply 2/7 by (7/1)=14/7?
7. solve using addition princible.7.4=x2.5. x=4.9?
8. find the oppisite of 50=50?
9. add. do not use number line except to check
7.1+8.7=15.8?
10. a mountian with a base 12,231ft below sea level rises 15,202ft. what is the elevation above sea level of its peaks? 2971?

4 is wrong
simplify 6
7 is wrong
9 is wrong 
4. divide if possible 64/8=8?
7. solve using addition principle.7.4=x2.5. so that mean x=9.9?
9.add. do not use number line except to check
7.1+8.7=1.6?
6. how would i simplify 14/7? 
14/7 = 2

so the corrected ones were right?