Answer:
y = 10
Step-by-step explanation:
2y - 5 = 15
make y the subject of the formula
2y = 15 + 5
2y = 20
y = 20/2
y = 10
1) 5.028 × 10^21
2) 8.46 × 10^22 (ig theres literally nothing else it could be)
3) approx. 17 times greater (rounded up from 16.8)
Are we supposed to find the area? If so, It's 36 because 6 times 6 equals 36 :p Hope I helped.
