GIVING BRAINLIEST TO SOMEONE WhO CAN SOLVE ALL 3 OF THESE

Answer:
2. 20
3. 9
4. 24
2.4(7-2)^1=4(5)=20
3.2(8-1)^0 + 7= 2×1 + 7= 2+7=9
4. 3×4 + 12= 12 + 12= 24