Answer:
84
Step-by-step explanation:
We can set up a proportion using fractions.

Now, let's cross multiply by multiplying 12 and 28 then dividing by 4.

Hope this helped!
Answer:
1120
Mutiply the numbers then add
Answer: the one that have -5,0,0.8.1.
Step-by-step explanation:
Hello,
Answer B since
(y=-3x+4)* 3==> 3y=-9x+12 which is the second equation ==>infinity many solutions.
Answer: x is 90
Step-by-step explanation:
because x-20 is equal to 70