Answer:
C
Step-by-step explanation:
time is directly proportional to the number of problems in the set
=> x = ky
k = constant of proportionality
when k = 12
x = 12y
by making y the subject, we divide both sides by 12
=> y = x/12
Answer:
as a fraction it could be 3/5
Step-by-step explanation:
but as a decimal it would be 0.6
Answer: 8
Step-by-step explanation:
6x-3=45
6x=48
x=8
