Một lớp có 20 nam và 10 nữ. Hỏi có bao nhiêu cách chọn 1 ban cán sự lớp gồm 1 lớp trưởng, 1 lớp phó học tập và 1 lớp phó đời sống.

a) Một cách tùy ý.

b) Lớp trưởng là nữ

c) Có đúng 1 nữ.

d) Có nhiều nhất 1 nữ

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

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