Josiah works at an electronics store as a salesperson. Josiah earns a 2% commission on the total dollar amount of all phone sales he makes, and earns a 7% commission
on all computer sales. Josiah had $300 more in computer sales than in phone sales
and earned a total of $156 in commission. Write a system of equations that could be
used to determine the dollar amount of phone sales Josiah made and the dollar
amount of computer sales he made. Define the variables that you use to write the
system.

the answer is a

step-by-step explanation:

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 : )

21

jk it's 20

step-by-step explanation: