từ các số từ 0,1,2,3,4,5,6 có thể lập bao nhiêu số tự nhiên có 4 chữ số các chữ số khác nhau trong đó luôn có chữ số 2

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza

2f(x)= x+3 if 4 < x < 8 2x if x 28 2