Answer:

Step-by-step explanation:
First, subtract 50.45x from both sides. Then divide by 7.5 on both sides.

Answer:
243 × 12
Step-by-step explanation:
multiply 81 by 3
next multiply 3 by 4
then you got your answer
Answer:
136.17059542672028
Step-by-step explanation:
just divide my friend
Answer:
composite number. that is what it is called
Step-by-step explanation:
Answer:
x should be 55
Step-by-step explanation:
the acute angle is 55 and we know that the whole horizontal is 180 so calculate 180-55 to find the obtuse angle which is 125. Then subtract 70 from that to isolate for x and you get 55.