Well round them so the estimation would be 520,(for hundred) and 520 (for tens)
Answer:
B
Step-by-step explanation:
Have a nice day!
Answer:
50 black keys
Step-by-step explanation:
for every set of 7 white keys there are 5 black keys
72/7 = 10
so there is a total of 10 full sets of keys
then you have 2 white keys remaining but that doesn't matter because they will just be on the dies and already have a black key next
so this means that you only have to calculate the number of 10 sets of black keys and thats 5 x 10.
hope this helps : )
Answer:
y=11.46
Step-by-step explanation:






hope I helped
mark as brainliest answer
Answer: C) 15
Good luck !