Answer:
n = r - 2.5
Step-by-step explanation:
The discount Khalid is giving is $2.5 off, so the equation represents the neighbors' price equals the regular price minus 2.5.
Answer:
Step-by-step explanation:
First, subtract 50.45x from both sides. Then divide by 7.5 on both sides.
To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations. Example 2.3.
A reciprocal just flips the fraction
1. 
2.
3. Before it is flipped it is 
but it turns into 
Hope this helps!
