In a group of 42 children there are twice as many boys as girls. How many girls are there?

How do i graph the inequality of this equation? (These are 4 different ones) 1) 10+4y<18 2) 4x+7 (greater to or equal to) 11 3) - 13x<52 4) 7m-3m (Greater to or equal to) - 4 (I have to graph these in line graphs)

R+354=1,321 explain with detail

How much would you pay for an item if you paid $84.70 per month for 36 months?

Ivan plans to reorganize the music on his MP3 players. He has 9 1/3 music of rock and hip-hop. After the change he is planning, he will have 2 4/5 times as many hours if rock and hip-hop music on his MP3 players.

What is the smallest multiple 3 and 4 have in common

Solve 3 (x - 1) = 2x + c

What devided by what equals 74

Solve for b a^2+b^2=c^2

The sun shines at a 60° angle to the ground. How long is the shadow cast by a 20 ft tall flagpole?

How do you do this 9x-3=5x-15?