What is the slope of the line between (1, 5) and (3, 9) is it A, B, C, or D?

A) M=-2

B) M=1/2

C) M=2

D) M=-1/'2

Plzzz maths ! quadratic sequences=an^2+c 1) 11,17,27,41,59 2) 7,16,31,52,79 3) 6,18,38,66,102 4) 0,9,24,45,72 5) 0,12,32,60,96

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost