Answer:

Step-by-step explanation:
PEMDAS is a acronym which helps you to remember the order of operations.
PEMDAS stands for :
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
<u>Let's </u><u>solve</u>

Multiply the numbers : 15 × 18 = 270
⇒
Add the numbers : 270 + 12 + 3 + 9
⇒
Hope I helped!
Best regards!!
Alright, so plugging it in, we get 2(-4)^2=2(2)^4+3^2-(-4)^2+2^4. Use PEMDAS with parenthesis and exponents to then get (2)(16)+9-16+16. Multiplying 1 and 16, we get 32+41-16+16=73
50% of 70 = 35. If you wanna know how,just ask :D