Combine like terms: 18a - 8b -1
Answer:
All three are yes
Step-by-step explanation:
4. yes
5.yes
6.yes
5 * 2 = 10
3^10/3^-2, same base, add
10 - 2 = 8
Solution: 10^8
Answer:

Step-by-step explanation:
hello
as an apple costs a pence and a banana b pence
3 apples + 5 bananas cost 3*a + 5*b
hope this helps