You could give all of the fractions a common denominator. You could also solve each of them (1/2=0.5) to see their value and order them through the value.
Answer:

Step-by-step explanation:
An Albert Einstein iconic math problem.
Answer:
35N
Step-by-step explanation:
Find the constant multiplied to the mass:
8 * k = 40
Divided by 8
k = 5
Find the weight of a 7 kg mass
7 * 5 = 35N
B.120 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!