7 multiply by three u get 21 then add it to the number 28 add u get the answer 49
Answer:
x = 4.5
Step-by-step explanation:
there's definitely other ways to solve this, but I used a proportion.

Then you can make this equation:
14x = 3.5 * 18
I solved for it and got 4.5 .
Answer:
(5.5, 2.5)
Step-by-step explanation:
Plug in X and Y and guess is how I did it
Distribute the -2 to get
-16x + 8 < 2x + 5
3 < 18x
1/6 < x
so x > 1/6
It would be 315151515/1000000000
count the digits after decimal, divide that by the power of tenth of that