11. select the proper placement for parentheses to speed up the addition for the expression 2 + 9 + 8 + 1 a. (8 + 2) + (9 + 1) b. (9 + 2) + (8 + 1) c. (8 + 9) + (2 + 1) d. (1 + 2) + (9 + 8)

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?