Albanian Use the approach in Gauss's Problem to find the following sums of arithmetic sequences
a. 1+2+3+4 + ... + 102
b. 1 + 3 + 5 + 7 + ... + 97
c. 8 + 17 +26+35+ ... + 890
d. 706 + 699 +692 +685 + ... + 6
a. The sum of the sequence is

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.