418.42 plus 13.587 i do not know the answer and I am not very good at math because of family problems. thats not the point but i need help.

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

Choose the more precise measurement. 26.4 cm or 8.39 cm

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4