Answer:
9/7, 1/6, -3, 4/5
Step-by-step explanation:
Use the
formula to solve this.
4: 
5: 
6: 
7: 
Answer:
true
Step-by-step explanation:
Answer:
the scale factor is 3/4
Step-by-step explanation:
15/20= 3/4
6/8= 3/4
Answer:
6. 8b²-5b-4
7. -3x²+9x-4
8. 3
9. 6a+15
Step-by-step explanation:
you will subtract/add the numbers with the same variables and exponent.
ex. (number 6) 7b²+ b²= 8b²
5b= 5b 8b²+5b-4
1-5= -4
(plus 5b because it didnt come out to a negative) if you have any questions, say in the comments and ill try my best to help