Answer:
9
Step-by-step explanation:
You do 90 divided by ten.
I feel like I know the answer, but I'm not quite sure. I don't want to provide incorrect answers, so hopefully someone else can answer the question.
I'm really sorry I can't help you.
First you figure out that the ratio 7:4 is 1.75
Then you do this problem 28 divided by 1.75=16
And 28:16 is the same as 7:4
Now all you do is add 28+16=44