Answer: he has 128 + d
Step-by-step explanation:
well if he had 128 yesterday and today he got d more just add d to 128 and ull see
for example, lets say d = 16
to find out the total we woukd have to add 16 to 128 (just an example the answer is not d=16)
answer= 128+d
Answer:
20
Step-by-step explanation:
half of 20 is 10.
so 20 + 10 = 30
if Maddy lost 3 points for every problem she got wrong.. she lost 9 points. but she gained 4 extra credit points so she only lost 5 points.