ANSWER: y=9
First substitute x
6.4(3)+2.8y=44.4
19.2+2.8y=44.4
subtract 19.2 from both sides
2.8y=25.2
divide by 2.8 on both sides
y=9
h - length of the hypotenuse
Use the Pyhagorean theorem:

Well, there is 4 times 6 so that's 24 and it says plus 3 times 4 so that is 12 so you add 24 plus 12 and that is 36
Answer:
Her total is now $170.54.
Step-by-step explanation:
You would do 20% of 212.94 which is 42.40 then subtract that from 212,94 to get the answer.