Answer:
Step-by-step explanation:
<u>Given inequality:</u>
<u>Verify if (-1, 1) is correct:</u>
- 7(-1) + 2(1) > - 5
- - 7 + 2 > - 5
- - 5 > - 5
False inequality, it is not the solution
Answer:
25
Step-by-step explanation:
Use the order of operations.
Answer:
rational
Step-by-step explanation:
Alvin's age + Elga's age = 84
2R + R = 84
3 R = 84
3/ 3 R = 84/ 3
R = 28
Elga's age is 28