Answer:
7x+2.8y or y= -2.5x
Step-by-step explanation:
add 9x to -2x subtracy 5.3y from 8.1y switch sides of the x by subtracting it from both sides then divide the 2.8 to get -2.5x
Red Ink pens.
Red ink pens are sold at $1.50 while Black ink pens are sold at $30. One black ink pens cost more than one red ink pen by $28.50.
6
Answer: D
I just took the test and the answer is D.
