68 is not a prime number. The prime factorization of 68 would be 2 x 2 x 17.
Answer:
79%
Step-by-step explanation:
He has 100% to start off. If he puts 21% into savings you subtract that from the starting amount. 100 - 21 = 79. Therefore the answer is 79%.
Answer:
x=25
Step-by-step explanation:
x/5+4=9
x/5=9-4
x/5=5
x=5*5
x=25
What percent of 55 is 13
percent means parts out of 100
x%=x/100
'of' means multiply
what percent of 55 is 13 means
x/100 times 55=13
times both sides by 100
55x=1300
divide both sides by 55
x=23.63636363636363
answer is 23.63%