Please can i have help with this question need help urgent Just question A & B then i will give for correct one

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

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.