Questions Twenty one learners wrote an examination. The exam results are given below in a form
of percentages
28 A 47 56 86 35 75 47 43 57 61 82 47 61 51 74 61 84 33 43 B
68% is the range of the marks. Calculate the value of A i A is the lowest mark
512 53.048% is the mean percentage mark for the class. Calculate the value of B
Round your answer to the nearest whole number.
(2)
5.1.3 The examination paper was set out of 150 marks. Calculate the actual marks of
the learner who obtained the highest percentage.
(2)​

7

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

idk

step-by-step explanation:

a and c

step-by-step explanation: