Answer:
-7.14
Step-by-step explanation:
The first rule of PEMDAS is Parenthesis, so you add what is in between them:
-2.8 + 4.5 = 1.7
Your equation now look like:
-4.2 (1.7)
When you have a number before a parenthesis, you have to multiply them:
-4.2 x 1.7 = 7.14
And that's your answer! Hope that made sense.
