Identify the property used in the first four steps to solve the equation
4(x-7) = 2x - 6
Step 1: 4x-28 = 2x-6
Step 2: 2x-28 = -6
Step 3: 2x = 22
Step 4: x = 11

What is the range of this function? all real numbers such that y ≤ 40 all real numbers such that y ≥ 0 all real numbers such that 0 ≤ y ≤ 40 all real numbers such that 37.75 ≤ y ≤ 40

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Evaluate the expression. (9 + 5)(3 + 2)0