Will give brainest a particular strain of bacteria

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

Me asap! what is the slope of this line? enter your answer in the box.

What is the x-intercept and y-intercept of the equation 2x+1. 2o