What is missing in (18 plus 7) plus 9?

Which digit is in the tenths place of the number 27630.548? What does this expression mean their ilk? In driving You can be fined up to 1000 and jailed for six months if you are cited for? What is the word form for 8.031? What is n plus 0.8 equals 0.91? What formula is used to find the length of a line on space? What is the square yard of a room that is 20' x 11'? What is 172 divided by 100? 6 What would you do to convert yards to inches? How many pounds do 2 tons weigh? How many factors does the number 62 have? What is 2.7995 to the nearest hundredths? What is the answer for calculate the mean and standard deviation for the subset of Fibonacci series given here 8 13 21 34 55 89 144? Which chart shows the proportion of how one or more data elements relates to another data element? Can you solve 3x2 2x 1 by factor? What is 2 hours and 45 minutes plus 3 hours and 57 minutes? How many Significant figures are there in 7.0089? What is -0 2? What is a polygon with NO EQUAL sides? Next number in sequence of 1 5 17 53 161?