Pa help po kailangan no napo to

Answer:
1) ?
2) a² - b³
3) 10 × b
4) The difference of x and 20
5) ?
6) x³ - 2 = 10
7) The difference of twice a and 3b is 15
8) ?
9) The difference of x and 20 is 5
10) ?
Step-by-step explanation:
Sorry di ko na alam ung iba