640 children participated in the local recreation program last year. this year the program saw a 5% decrease in the number of participants. how many fewer children participated this year?

Which of the following parabolas opens down?

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

If a runner who runs at a constant speed of p miles per hour runs a mile in exactly p minutes what is the integer closest to the value p