(a(1) = -13
(a(n) = a(n-1)+4
Find the 2nd term in the sequence

Please don't guess and try to show your work i have been stuck on this one all day

An architect builds a model of a park in the shape of a rectangle. the model is 40.64 centimeters long and 66.04 centimeters wide. one inch equals 2.54 centimeters. use the ratio table to find the ratio of the length to the sum of the length and width in inches and in simplest form. length 40.64 width 66.04 a. 8: 21 b. 13: 21 c. 21: 13 d. 21: 8