Ms. Stephanie bought a package of pencils. Out of every 10 pencils​, 2 are black. If there are 20 pencils in the​ pack, what fraction of the pencils in the pack are​ black? What percent of the pencils in the pack are​ black?

Average acceleration: i have no idea how to do this.

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?