Answer: the image is blurry
Google it. Sorry I don't know
A = 1/2bh...multiply both sides by 2
2A = bh...divide both sides by b
(2A)/b = h
s = 1/2gt^2...multiply both sides by 2
2s = gt^2...divide both sides by t^2
(2s) / (t^2) = g
H = vt - 5t^2...add 5t^2 to both sides
H + 5t^2 = vt...divide both sides by t
(H + 5t^2) / t = v
If the sum is 5 or more you round it up to the next whole number. If it is less than 5 you keep it at the same whole number