Determine whether the given statement is true or false. justify. a) there exists a positive integer n such that+5n is prime. b) there exists a positive integer n such that +5n + 8 is prime. c) there exists a positive integer n such that n+ 5n+9 is prime. d) there exists infinitely many positive integers n such that+57 is composite. e) for all positive integers n, n+21n+ 1 is prime.

you can not drow on this

step-by-step explanation:

pls ask

i do not know the answer

step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: