Two math questions?

Please help me with them and do not accuse me of not doing my HW. Ive tried. The more important is, The following numbers are zingers: 9, 41, 57, 73, 17, 89, 33 The following numbers are NOT zingers: 7, 22, 45, 8, 59, 36, 68, 13 Which of the numbers below are zingers? 4, 55, 63, 25, 49, 24, 77, 92,... show more Please help me with them and do not accuse me of not doing my HW. Ive tried.

The more important is,
The following numbers are zingers:
9, 41, 57, 73, 17, 89, 33

The following numbers are NOT zingers:
7, 22, 45, 8, 59, 36, 68, 13

Which of the numbers below are zingers?
4, 55, 63, 25, 49, 24, 77, 92, 38, 42, 20 65

What is a zinger? Explain.

The less importnat but important is,
A cylinder 48 cm high has a circumference of 16 cm. A string makes exactly 4 complete turns round the cylinder while its two ends touch the cylinder's top and bottom. How long is the string in cm?

I will be so incredibly grateful for whoever gets the answer. Thanks alot.
2 answers 2