Karen wants to join Buff Gym. There is a $100 initiation fee, and then a $40 monthly fee. A) Determine the equation that express
es the cost of joining this gym for x months. B) Find the inverse function of the equation for part A.
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Answer:
Raul's errors are in the application of the distributive property(he applied it wrongly), in not respecting the precedence of operations, and in the multiplication of two terms with the same base(we add the exponent).
Step-by-step explanation:
Distributive property:
The distributive property of multiplication is:
a*(b + c) = a*b + a*c
Precedence of operations:
First multiplication, then addition.
Multiplication of terms with the same base:
The multiplication of h*h = h², which Raul missed.
The correct simplification is given by: