Value + prefix ↔ base SI (yotta…yocto).
Base: 1000 m: 1.000000e+6 (1): 1000 k: 1 M: 0.001 G: 1.000000e-6 n: 1.000000e+12 µ: 1.000000e+9 T: 1.000000e-9
Yes.
No.
Solve V, I, R, P from any two values.
Current-limiting resistor and nearest E24.
Vin, R1, R2 → Vout; solve any missing value.
GPA from letter grades on a 4.0 scale.