The graph shows two lines, a and b. part a: how many solutions does the pair of equations for lines a and b have? explain your answer. (5 points) part b: what is the solution to the equations of lines a and b? explain your answer

Could someone with number 1 and 2

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?