Answer:
Lucy had 40 books last year.
Step-by-step explanation:
assuming 100% is the percent;
100% + 70%
100 : x
170 : 68
cross multiply = 170x = 100 x 68
-------- ————-
170 170
cancel 170/170
therefore x = 100 x 68 divided by 170
result is 40
All numbers that only have one and itself as factors are prime. Therefore, to tell if a number is prime simply find it's factors. If it has more than two factors than it is not a prime number.
Answer:
c and d
Step-by-step explanation:
Answer:
5.833
Step-by-step explanation:
SIX MINUS 0.617 IS 5.833
Answer: 30
Step-by-step explanation: PEMDAS
