Answer:
JK got 30 answers correct on a 50 item test.
Step-by-step explanation:
It is given that:
Total items on test = T = 50
Fraction of total items that were answered correctly = 3/5
We simply have to multiply the total number of questions by the fraction of correct answers.
So,
The correct answered number of items are:

Hence,
JK got 30 answers correct on a 50 item test.
15, 18, 21
i don't know the other one, sorry
Answer:
a) 48 b) 132 c) 180 d) 228 e) 312
Step-by-step explanation:
Answer:
i think 2/15 of the cookies
Step-by-step explanation:
hope this helps
Answer:
S.D=61.824137824783
Step-by-step explanation: