At another school they sell a different brand of gift wrap which costs $2 per package and cards for $5 per package. your friends class sells 220 packages and earns a total of $695. find the number of each type of package sold

(using systems of equations)

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 : )

if you need just tell me and i will come to the rescue.

step-by-step explanation: