Afair die is rolled repeatedly. let x be the number of rolls needed to obtain a 5 and y the number of rolls needed to obtain a 6. calculate e[x∣y=2].

Can someone pls ! pls answer all. no explanation needed..

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10