Reverse combined integer exponents and compare scientific quantities with unit conversion

Answer: 8

1. Combine the indices: 5x+4−3=41.
2. Solve the linear equation to get x=8.

Answer: 200

1. The powers give a total mass of 12×10−1 grams.
2. Convert to milligrams and divide by 6:200 mg.

Answer: 7

1. Combine the indices: 3x+2−4=19.
2. Solve the linear equation to get x=7.