Given this graph of average giveaway, what is the best estimate for the expected giveaway value of this game?

Answer this 30 points and brainliest!

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Askateboard ramp is in the shape of a right triangle what is the height of the ramp