To get a close estimate, we can round 49 up to 50 and 311 down to 300, obtaining an estimate of 50/300 = 1/6, or 0.1666... as a repeating decimal. That decimal approximation is a little less than one hundredth away from the actual decimal approximation of ≈ 0.1576
$570.60 because 90/100=.90 so multiply that with 634 with .90 you get 570.60
That'd be 20(p-3). Check by multiplying out 20(p-3)
The last one. And I did answer for you too.
