Her call would have lasted 27 minutes. Hope this helps.
Answer:
86
Step-by-step explanation:
The average is the sum of all the grades divided by the number of tests.
83.8 = (84 + 79 + 82 + 88 + x) / 5
419 = 333 + x
x = 86
Answer:
20g
since mass should be in kg or gram if small then g
