It is the $$\pm$$ key on the calculator.
Substitute 7 for y in y = -x + 4.
7 = -x + 4
Add x to both sides and subtract 7 from both sides.
x = 4 - 7
x = -3.
Simply add another 0 to 10,000 --> 100,000.
(2/3)^4
2^4 / 3^4
16 / 81
0.1975308641975309.
$1,200 / $38 = 31.5 --> 31 uniforms since you cannot have half of a uniform.
Yes, sounds easy!
What is wrong?
