Answer:
A pentagon has b) five points
Step-by-step explanation:
The number would be -9, It would be -9 because 5 more than -18 would be -13, and -9 times 2 is -18
He sold 28 peaches because 42-14=28 & 14+28=42 peaches.
Answer:
Option b
Step-by-step explanation:
- Calcium has atomic no-20
- Hence it has 20 protons
- Silicon has atomic no 14
- Hence it has 14protons
Total:-

42 x 0.03=1.26. 42 - 1.26= 40.74. So, the answer is 40.74. kg :)