Answer:

Step-by-step explanation:
Please see attached picture for full solution.
The surface area will increase by a factor of 49/16
Answer:
73.3
Step-by-step explanation:
7%=7÷100=0.07 ×60=4.2
15%=15÷100=0.15×60=9
add you answers to 60 and to should get 73.2
Answer:
3
Step-by-step explanation:
3 squared is 9. 5 squared is 25. 25 + 9 = 34. 5 + 3 = 8. So the smaller number is 3.
Answer:
12/10 =1.2 - 1 = 0.2 x 100 = 20%
Step-by-step explanation: