Can someone please help me with these 3 Tysm!! (Please tell me how you solved them) will give brainlist <3

Answer:
1. 50
2.40
3. 9
Step-by-step explanation:
1. in this u need u plus ten with number given
2. in this u need to plus 5 in all the above numbers but i have subtracted bcoz it was below
3. in this u need to multiply 3 with every number like 9*3 27
hope it helps