515 - 87 = 428
428/245 = 1.746938
To the nearest tenth = 1.7 lbs
Please put more details in the question
Answer:
x= 
Step-by-step explanation:
im going to assume the 3x2 mean 3 times 2
Answer:
9 : 1
Step-by-step explanation:
given a linear ratio = a : b, then the corresponding area ratio is
a² : b²
Here the linear ratio of their edges = 3 : 1, hence
ratio of surface areas = 3² : 1² = 9 : 1