Please show work! will give brainlist!

1. solve the system of equations by graphing: y = -3x - 3 m = b = y = 2x + 2 m = b = plz solve now

Sheila and her study partner flipped a coin 120 times. they flipped 70 heads and 50 tails. what is the experimental probability that the next flip will be heads up?

If you do this you are getting 20+ points so can you hurry plsphil is riding his bike. he rides 29 miles in 2 hours, 43.5 miles in 3 hours, and 58 miles in 4 hours. find the constant of proportionality and write an equation to describe the situation. let x represent the number of hours.