16. Higher Order Thinking A cell phone plan is shown at the
right. The rates, which include an unlimited data plan, are the
same each month for 7 months. The total cost for all 7 months
is $180.39. Let m represent the average number of minutes that
exceeds 700 minutes each month.
a. Write an equation to represent the given situation.
b. Solve the equation to determine how many additional
minutes, on average, you use each month.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

300pi

step-by-step explanation: