Answer:
First I need the whole question and second I am guessing around 76 or 72.
Step-by-step explanation:
Answer:
1. x = 30
REC = 130
Step-by-step explanation:
2x + 70 = 4x + 10
60 = 2x
x = 30
you try the others
Good luck :D
Answer:
48.75
Step-by-step explanation:
340/80=16 1/4
16 1/4*3=48.75
6.47 x 10^4
Just type it in a scientific calculator, and if it isn’t already in standard form you count how many times you would move the decimal place to make the number between 1 and 9.999…
So in this case 4, and that would be the power.
Then round to 3 sf.
So the answer would be 6.47 x 10^4
