David Weber, Talei Kunkel, Alexander Martinez and, Rebecca Shultis Solutions for Chapter: Integers Human Explorations, Exercise 32: Unit review

Find the Celsius temperature that is equivalent to each of the following of the Fahrenheit temperature.
$-40°F$

Create an expression using integers and at least four different operation from BEDMAS ( bracket exponents division/multiplication addition/subtraction)where the answer is
0

Create an expression using integers and at least four different operation from BEDMAS( bracket exponents division/multiplication addition/subtraction)where the answer is 3

Create an expression using integers and at least four different operation from BEDMAS( bracket exponents division/multiplication addition/subtraction)where the answer is -2

Create an expression using integers and at least four different operation from BEDMAS( bracket exponents division/multiplication addition/subtraction)where the answer is -12

Simplify

$\frac{(-75)-(-40)÷(-4)+(-5)}{\left[\right(-45)+90]÷(-5)}$

Simpify it:

$\frac{81÷(-9)+30-(-19)}{-6\times -5÷(-10)}+\frac{100+(-60)÷(-12)-(-5)}{(80+10)÷(-9)}$

Simpify:

$\frac{(-8)11+(-6)7}{(-39)-(-52)}-\frac{(-12)5+(-6)}{7(-3)-(-10)}$