Answering from phone so this will be a bit messy.
a
b=a+1
c=b+1=a+2
2a=b+20
Therefore:
2a=a+1+20
a=21,b=22,c=23
Answer:
D.
Step-by-step explanation:
Sorry i haven't been on much, btw.
Answer:
B. 52°
Step-by-step explanation:
x + 38 + 90 = 180
x + 128 = 180
x = 180 - 128
x = 52°
One method she could use would be to take the nth jar off of the line for the entire day for a certain number of weeks and see what portion of them meet standards. For example, she could test the 10th jar from the line all day, then repeat the process a few days later.