#1
5x + 10 + 13x -10 = 180
18x = 180
x = 180/18
x =10
answer: value of x = 10
#2
21x +5 +37x +1 = 180
58x + 6 = 180
58x = 180 -6
58x = 174
x = 174/58
x = 3
so 37x + 1
= 37(3) + 1
=111 + 1
=112
answer: measure of the highlight angel = 112
8.25% of whatever, is 8.25/100 * whatever, now.. to get the 8.25% of 459.95, then that'll be 8.25/100 * 459.95, that's the sales tax, now, add that amount to the price tag of 459.95, and that's how much it costs with tax
We’re calculating perimeter, so we add up the length of all 4 sides, or multiply (l + w) x 2. Since the room is square, we only need the one measurement.
11.4 x 4 = 45.6 feet