Matthew made a fruit salad, in which the ratio of blueberries to red grapes is 8: 6. if matthew used 28 blueberries, how many red grapes did he use? [type your answer as a number.]

pls answer fast

Step-by-step explanation:

Let's look at some other ratios that equal 8:6  We could increase them or decrease them.  For instance if we cut one in half we cut the other one in half, so 8:6 would be the same ratio as 4:3.  With the same thinking if we double one we double the other so 8:6 s the same ratio as  16:12.  Now, we want to go from 8 to 28.  What do we multiply 8 by to get to it?  Or, it might be easier to use 4:3 and see what you multiply 4 by.  Then you multiply 3 by that same number to get the other number.

Let me know if that doesn't make sense.  

the distance between point a and point b is 6 units