Complete the explanation of what happens when you round 4.975 to the nearest tenth. since they're is a in the hundredths place, the number in the tenths place will be__ since 9+1=10 a will go in the tenths place and will be added to the 4 in the ones place making the answer

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