To solve the expression 2/5-7*(-3) using PEMDAS, we follow the order of operations:
1. Parentheses: There are no parentheses in the expression, so we move on to the next step.
2. Exponents: There are no exponents in the expression.
3. Multiplication and Division: Multiply first. We have -7 multiplied by -3, which equals 21. So the expression becomes:
2/5 - 21
4. Addition and Subtraction: Finally, perform the subtraction. 2/5 can be written as 0.4, so the expression becomes:
0.4 - 21
Now, subtracting 21 from 0.4, we get the result:
-20.6
2/5-7*(-3)
show your work using pemdas
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