Answer this and get tons of points

What is the value of BD in the diagram below?

Volume of cylinder with a radius of 8cm and height of 25 cm

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.