Is there more context to the question?
2(x4) = 35 - (7-4x)
+4x
2(x8)= 28
/2 /2
8x = 14
Is 76.63 because:
If it is 5 or above, you give it one more point .
If it is 4 or below, you let it stay still.
Answer: it means simple interest
Step-by-step explanation it means simple interest because I means interest
The discontinuous at the x-value for which the denominator was zero is removable, I hope this help
