Brianna's thinking is incorrect.
Expessions A, and C. are equivalent.
For C, you add 5x and x together (because they have the same variable) to get 6x - 4.
For A, you subtract 9x and 3x (because they have the same variable) to get 6x- 4.
Answer:
27
Step-by-step explanation:
15.75/0.60=26.25
if we round it up, Erin needs to sell 27 cookies
Answer:
scale factor = 
Step-by-step explanation:
Compare the ratio of corresponding sides, image to original.
scale factor =
= 
Answer:
C
Step-by-step explanation: