Use "PEMDAS"
First we'll add then subtract


Two of the numbers were switched in a multiplication equation, so the answer would be commutative- multiplication.
Answer:
a is the answer
Step-by-step explanation:
Answer: 22-4x when you simplify it all.
D. 75 cm
Step-by-step explanation:
fill in the y with 20.5, so you get 20.5=0.3x-2. Add the 2 to the 20.5 so you get 22.5=0.3x. Divide both by 0.3 to get 75=x.
sorry if it's a bd explanation, hope this helps :)