We can wrap 12 presents. multiply the number of yards by the feet.
Normal income: 25 $
Last week's income: 25 + 20: 45 $
% = Last week's/normal = 45/25 ×100 =180 %
3m + 2n= p solve for n
subtract 3m on both sides
2n = p - 3m
divide both sides by 2
n = p/2 - 3m/2
-----------------------
xy - 5 = k solve for x
add 5 on both sides
xy = k + 5
divide both sides by y
x = k/y - 5/y
The 3 in 350 is in the hundred place and in 403 the 3 is in the ones place
Recall the inclusion/exclusion principle:

which means